Thomas Tuchel believes Chelsea face "two finals" against Leicester City over the course of four days that could do much to define their revival under his leadership.

The Blues have been a team reborn since Tuchel succeeded Frank Lampard as head coach in January and Saturday's FA Cup final at Wembley is their first of two shots they have at silverware – the other coming in the Champions League final against Manchester City in Porto at the end of this month.

Chelsea and Leicester will reconvene on Tuesday with qualification for next season's Champions League still on the line, especially after contrasting fortunes in their most recent fixtures.

Leicester won 2-1 at Manchester United to move ahead of Chelsea in fourth, who went down to a lacklustre 1-0 derby loss at home to Arsenal.

Liverpool, who also beat United in their match at Old Trafford on Thursday, could be one point behind Chelsea by the time Tuchel's men are back in league action and he lamented his team's failure to be "decisive" in the Arsenal game.

"Obviously I cannot judge it," he said when asked which game was more important. "These are two finals and we do not think about anything else but the two finals.

"It's a final for the cup, it's a final for the top four. We missed a chance against Arsenal to be decisive and now we have to cope with it – first of all to show a reaction at Wembley and have the upper hand when it comes to Tuesday."

Tuchel took his share of the blame immediately after Emile Smith Rowe was gifted the only goal by a dire Jorginho backpass at Stamford Bridge on Wednesday, and he conceded his irritation at the result had not quite subsided.

"'I still have a hangover from the last defeat, it's always like this. I'm a bit more in angry mode, not at myself or the players but because of the result and the opportunity we missed," he explained.

"I will hopefully transform that to a good preparation and push the team to the edge to play sharp. We have to show a reaction, it's the FA Cup final at Wembley.

"I am fully focused to prepare my team better than two days ago."

On Thursday, the Champions League final was relocated from Istanbul to Porto due to Turkey being on the UK government's "red list" for travel in relation to COVID-19 restrictions.

Tuchel insists his squad should not be paying any attention to an eagerly anticipated fixture still two weeks away.

"I'm happy to go to Porto, I'm happy to go to a final. That's the easy answer - I would go anywhere to play a final," he said.

"But right now the bigger challenge is to forget the Champions League final and to be fully focused on our two finals that are ahead of us.

"We cannot lose one percentage of concentration and focus. We did this the last game against Arsenal and we got punished for it. Lesson learned and well accepted."

Kepa Arrizabalaga will keep his place at Wembley as Chelsea's cup goalkeeper and Tuchel confirmed Mateo Kovacic was fit to feature again after a month on the sidelines with a hamstring injury.

"It's huge because Mateo has everything we need in the midfield," he added. 'Experience, power, he can beat players, he has physical ability and has played big games in the Premier League. 

"When we missed N'Golo [Kante] and Mateo, we lacked a lot of quality, energy and experience.

"Billy [Gilmour] did a huge job in huge games but it's not fair to compare him to these players because they have more experience and are a step ahead in their development. 

"It's big news that [Kovacic] is back because he's a big guy in the dressing room around important matches."

West Ham manager David Moyes did not hold back in his criticism of referee Chris Kavanagh after the Hammers' 1-0 defeat to Chelsea.

Thomas Tuchel's team clinched a potentially vital win in the race for a top-four finish against surprise Champions League hopefuls West Ham, with Timo Werner's first top-flight goal since February enough to seal all three points at London Stadium.

It was a game not without controversy, however, as West Ham's hopes of pushing for a late equaliser were dashed when Balbuena saw red in the 81st minute.

While clearing the ball down the line on West Ham's right flank, Balbuena – seemingly inadvertently – caught Ben Chilwell on his follow-through.

Referee Kavanagh initially booked Balbuena but, after consultation with the VAR, went over to assess the incident on the pitchside monitor and subsequently changed his decision to a straight red card – a call which infuriated Moyes.

"I think it's a decision made by somebody who's never played the game," he told Sky Sports. 

"I don't know where Balbuena is meant to plant his foot. If they do make that decision then you look at the one a few minutes later which was the same – this time it was Vladimir Coufal and [Antonio] Rudiger – and it was a very similar challenge but they've never done anything about it.

"I don't know how it's a red card, I don't know where he's supposed to plant his foot, and you would only have to be someone who doesn't know the game, hasn't played it, to not know that he's kicked through the ball.

"I don't think for one minute there's a bit of malice in that, or he's tried to catch him. I thought it was a rubbish decision."

It was the second VAR controversy of the day in the Premier League, after Newcastle United's Callum Wilson had a goal disallowed for handball against Liverpool, albeit Joe Willock then struck minutes later to snatch a last-gasp point at Anfield.

Liverpool's draw means that fourth-placed Chelsea are four points clear of the Reds, who sit sixth, with West Ham in fifth.

Thomas Tuchel is unbeaten in all 10 away matches with Chelsea (W8 D2) and is only the second manager in Premier League history to remain unbeaten in his first 10 away games in all competitions with a club, after Claudio Ranieri with Leicester City in 2015, in the year the Foxes won the title.

The former Paris Saint-Germain boss was delighted with Chelsea's overall display, and that of goalscorer Werner, who squandered a great chance to make sure of the win in the second half, and Tuchel told his compatriot to keep up his form heading into the run-in.

"He needs to keep scoring and catch the moment. He is quite often involved in our goals, even in the last weeks, by winning fouls in the penalty area or with assists like against Man City. But nothing helps more than a decisive goal," Tuchel told reporters.

Tuchel is not wrong, with Werner having been directly involved in 20 goals for Chelsea this season (11 goals, nine assists) – the most of any player for the club in all competitions.

"I am very happy because I felt he was strong from the start," Tuchel continued.

"He was very good with distributing the ball, dropping from the number nine position and keeping the ball, he had good timing with his deep runs behind the line, and was involved in many chances and half-chances."

Thomas Tuchel refused to condemn the formation of a European Super League and is adamant he trusts Chelsea to "make the right decisions" as he called for all parties to remain calm.

Chelsea were confirmed as one of 12 founder clubs of a new semi-closed competition on Sunday, with The Super League – as it has been dubbed – attracting widespread criticism.

UEFA, in a statement co-signed by the national associations of England, Spain, Italy and those countries' respective top leagues, vowed to ban players and teams from other competitions if they become involved in the Super League.

It remains to be seen if UEFA and the domestic leagues have the power to stop the Super League, but Tuchel cut a relaxed figure amid the hysteria as he addressed the media on Monday ahead of Tuesday's meeting with Brighton and Hove Albion.

He told reporters: "I've known since yesterday, but I am here to be in the hardest competitions, it's why I came here, to play the toughest competitions in Europe.

"As you know, I don't get into the subjects around us. I was hoping to talk about Man City and Brighton but it's not the case.

"I am part of this club and I trust this club to make the right decisions. I think it's too early to judge everything and it's not my part.

"On my badge it says that everyone has to play their role. My role is to coach, be focused, and we've another game tomorrow.

"There are a lot of comments, arguments and opinions out there and I don't want to get involved in it because I don't know the details. I've known the general details since yesterday."

Regarding the opinions of players and staff, Tuchel added: "If I had a clear opinion right now I wouldn't mention it - it's too early to judge it and there are way too many opinions out there.

"I trust this club and my job is very clear. I am maybe not the right person to ask this of. I understand why there are many emotional reactions out there, but I don't know enough about it.

"The players were not involved in the decision making, I wasn't involved. Maybe it's a good thing to step back and not give our opinions about this. It's between the clubs and it's important to fight for the goals we still have this season."

UEFA has made its position on the Super League crystal clear regarding the potential exclusions of teams.

Whether it is able to enforce such decisions is another matter, but Tuchel hopes all parties can calm down as they look to find solutions.

Asked if he was worried about potential punishment impacting Chelsea's season, Tuchel said: "There was not too much time to get worried. Clearly, I hope not.

"Everyone wishes for a calm atmosphere and situation to have full focus. Do we have it, maybe not but it's clearly our choice if we get influenced, read too much about it, get lost in sports politics.

"We are involved in this club to play our role and make our challenge happen at the highest level. This is what I am here for. Nobody expects anything else from me, except for maybe you guys in the next few days.

"Nothing will change between me and the team. Sometimes in the middle of the storm is the calmest. Let's hope it is like this and I don't want to enter in this as it may sound like an excuse."

Thomas Tuchel was proud to have got the better of Pep Guardiola for the first time in his career after leading Chelsea to a 1-0 victory over Manchester City on Saturday.

Hakim Ziyech's goal sent Chelsea into the FA Cup final for the fourth time in five seasons and ended Premier League leaders City's hopes of winning a quadruple this season.

Guardiola was unbeaten in his five prior meetings with Tuchel, all of which came during the Catalan's time in charge of Bayern Munich between 2013 and 2016.

Since taking over Chelsea in January, Tuchel has also come out on top against Jurgen Klopp, Jose Mourinho, Carlo Ancelotti and Diego Simeone.

He was pleased to have got the beating of a manager he considers to be the best in the world but urged his team to quickly put it behind them and focus on their push to finish in the top four of the Premier League.

"If you play against Pep, you know you play against the highest level in Europe because everywhere he was on the sideline he was the benchmark with his teams and he is again. You can see this in the Premier League," Tuchel told a post-match news conference.

"But it was our target to close the gap for the 90 minutes because it's possible in football if you arrive in good momentum you can make this happen.

"I'm happy and proud of the performances because we played with a lot of courage. We were brave with the ball and against the ball.

"We deserved the win, which is most important. We were very active and didn't get passive. We deserved the win against like I said maybe the best manager and clearly one of the best teams, so we are very happy with the performance.

"It'll be a huge boost for our confidence and for our progression and our development because we arrived with a young team. It's important to have these experiences together.

"Most important now is to enjoy it today and from tomorrow it's the past and we need to perform in a crucial week in the Premier League.

"Today the target was to close the gap to Man City for 90 minutes completely. It was a huge target and we were focused on that and delivered very well.

"Now the next big target is to forget this performance and success and enter with full awareness a crucial week in the Premier League."

Chelsea entertain Brighton and Hove Albion on Tuesday before taking on top-four rivals West Ham at London Stadium next Saturday.

Meetings with Chelsea have provided Manchester City with a measuring stick over the past 12 months.

In June 2020, at Stamford Bridge, City's 2-1 defeat handed the Premier League title to Liverpool, ending Pep Guardiola's two-season stay at the summit.

When City then returned to the same stadium in January, facing Chelsea for the first time in 2020-21, they rediscovered their mojo.

It was the fourth match in a sequence of 21 straight wins in all competitions and arguably the pick of the bunch.

Slick City, missing a host of stars due to COVID-19, swept Chelsea aside in a 3-1 win as Ilkay Gundogan, Phil Foden and Kevin De Bruyne all scored. They left London in fifth but firmly back on track.

It has since looked as though that might be a defining display in a historic quadruple achievement. City, like Chelsea, reached the Champions League semi-finals this week. They are already clear at the top of the league table and have an EFL Cup final Wembley date with Tottenham next weekend.

But in the FA Cup, the fourth competition, City were tasked with again taking on Chelsea, an entirely different prospect now Thomas Tuchel has replaced Frank Lampard and fortified the Blues.

And Saturday's semi-final saw City finally come unstuck as Chelsea claimed a superb 1-0 success.

Blues a different beast

The improvement in Chelsea from January's match to this game was evident even in a first half in which they managed only two legal shots.

All three of City's goals had come in the opening 45 minutes last time, tearing through Lampard's men at will. They were now limited to three first-half efforts of their own worth a combined 0.1 expected goals. Parity suited Tuchel, who could not allow De Bruyne to dictate once more.

At the other end, a portender for City's later downfall appeared in the 'offsides' column, for the Premier League leaders were warned long before Hakim Ziyech's 55th-minute breakthrough.

With just six minutes on the clock, Timo Werner advanced up the left and the flag stayed down. The forward played a low, square ball, which City could not cut out, and Ziyech scored. Then the flag went up. A let off.

When Werner exploited the same space 10 minutes after the interval, set clear by a gorgeous Mason Mount pass, goalkeeper Zack Steffen decided to act.

Seemingly unimpressed by the way with which a usually sturdy City defence had allowed Werner to centre and Ziyech to finish on the first occasion, Steffen advanced and fared no better than his team-mates. The United States international failed to narrow the angle and simply granted Ziyech an open goal when Werner made his pass again.

KDB blow for treble bid

Mount moved uneasily as he was replaced 15 minutes later, but the damage was done. City had already lost De Bruyne - who completed only 10 passes in the Chelsea half - to an ankle complaint at the start of the second half. That setback could have implications far beyond this encounter.

Steffen twice saved City, blocking from Ziyech and reaching a tame Werner prod, and De Bruyne's replacement Foden sought to muster up more magic.

Momentum swung but the scoreline did not. Ruben Dias headed over from close range and Raheem Sterling blasted beyond the crossbar.

Although the flag was raised again to deny Chelsea a second in stoppage time - Christian Pulisic, on for Mount, frustrated - the Blues battled, blocked and bellowed their way across the finish line.

Tuchel five times faced Guardiola in Germany and failed to end on the winning side. Boosted by spirit in defence and speed in the form of the much-maligned Werner, he finally found the formula.

The Chelsea coach will get another go at Guardiola in the league on May 8, a third meeting this season hot on the heels of the sides' respective Champions League semis. They will know by then if there is to be a further part to this epic in a European final - hopefully, for City's sake, with De Bruyne back involved in Istanbul.

Should Guardiola's men win that prize, the most precious of all, it could clinch a tremendous treble, but FA Cup glory is not on the agenda this season.

"We never speak about the four titles," the City manager said in midweek. "One game at a time."

The next game ensured nobody outside the club could speak about that clean sweep either - at least for another year.

Thomas Tuchel is confident Chelsea can close the gap to a Manchester City side he believes are the "benchmark" in European football alongside Bayern Munich for 90 minutes in Saturday's FA Cup semi-final.

Tuchel has never beaten a side managed by Guardiola during his career, having met the Catalan tactician five times across spells in charge of Mainz and Borussia Dortmund, earning two draws against his opponent's Bayern Munich side.

Both Chelsea and City are through to the semi-finals of the Champions League but, with the Blues 20 points behind Guardiola's men domestically, Tuchel accepts his team are a long way off the standard set by the Premier League leaders.

Asked if, having always been an underdog against him in Germany, Tuchel's Chelsea and Guardiola's City can be considered equals at Wembley, Tuchel told a media conference: "Yes and no. We have to accept there is a gap between us and Manchester City.

"If you look at the fixtures in the Premier League and if you look at the fixtures in the last few years we have to accept this. It's important that we accept it but without making us too small.

"From day one next season we will hunt them and try to close the gap between us. For me, in Europe, there are two teams who are the benchmark: Bayern Munich and Manchester City.

"But I know what you're saying of course, he made it impossible for us to beat them with Mainz, I think we had two draws with Dortmund, one ended in the cup final in a penalty loss and we had another draw at home, so we came close, it's time that we beat them, the next try is tomorrow.

"I don't believe in how big clubs are, are we equal or not? We have to admit that there is a gap but for 90 minutes we are very self-aware and very self-confident that we truly believe we can close the gap for one game, this is the target for tomorrow and I arrive with a team that I'm absolutely happy to arrive, to compete against the benchmark in England and Europe.

"We don't have the momentum of football on our side. If we want to have this we have to play on our top level, to force things and need a bit of luck.

"If we manage to beat them it will be a huge boost if not we will have to accept and take it as a challenge and opportunity to grow because we have some fights coming up. It's not only about the FA Cup, it's about the top-four race and the Champions League."

Tuchel takes joy in competing with Guardiola, identifying him as a significant inspiration in his managerial career.

"[Guardiola is a] huge influence because when he was coach of Barcelona I was watching almost every game," Tuchel explained. 

"I was very impressed by the way they made success happen with the style they were playing with their own academy guys, the offensive way, the ball possession.

"The most impressive thing about this team was their mentality, how they defended when they lost the ball. I learned a lot watching the game and understanding more of the game, how adventurous, how brave you can approach this game.

"So it was a big, big lesson. At this time I was a coach at the academy and then became a coach at Mainz. Almost every match was a lesson in these days and then later we had the opportunity to play against him.

"It was not always a pleasure but when you arrive on a certain level it's of course a pleasure to play against him and to meet him and to fight on the highest level."

When FIFA last year announced they were set to introduce limits on the number of players teams could send out on loan, unsurprisingly many people's first thoughts turned to Chelsea.

At the time, the Blues remarkably had 28 players at other clubs, though this was by no means a recent trend: in 2018-19 that figure was 41.

The 'hoarding' of talent might be a solid ploy when looking to stunt the growth of a rival team or generate long-term revenue on Football Manager, but in the real world it was a practice that had long attracted criticism.

While by no means the only club in the world to have lots of young players out on loan, Chelsea have – rightly or wrongly – arguably been the most synonymous with it.

Some feel this has directly contributed to the club's struggles in developing homegrown talent because they have so many players, whereas others believe it offers a greater number of individuals the chance to play first-team football at a higher level than the Under-23s.

Putting aside some of the moral issues, Mason Mount falls into the latter category and proves there is a route to the first team through the fog of war for Chelsea's loan army.

By his own admission Mount needed an extra kick when he was in Chelsea's Under-23s as an 18-year-old, and that led to his temporary switch to the Eredivisie with Vitesse Arnhem, where he won the club's Player of the Year award.

But it's unlikely even he realised how important his next move would be as he linked up with Chelsea great Frank Lampard.

In at the deep end

Mount made 44 appearances across all competitions for Derby County in 2018-19 as they missed out on promotion in the play-off final, but regardless of that ultimate disappointment it proved a massive year for both he and Lampard.

With Maurizio Sarri departing Stamford Bridge to join Juventus despite Europa League success, Lampard was brought back to the club as head coach. Given his status and the trust he placed in young players – and, more pertinently, young players owned by Chelsea – at Derby, Lampard was seen as the ideal candidate to guide the team through a transfer embargo by bringing through homegrown talent.

Whether or not Lampard was a success as Chelsea coach is a discussion for another time, but his faith in Mount was unquestionable, chucking him straight into the team on the first day of the 2019-20 season.

The Blues suffered a rather harsh 4-0 defeat at Manchester United, but Mount didn't look out of his depth in the Premier League, playing four key passes over the course of the match.

He never enjoyed a more productive Premier League game in terms of chances created in 2019-20, while he finished the season with 12 goal involvements (seven scored, five set up), a figure bettered by only Tammy Abraham (18), Willian (16) and Christian Pulisic (13) in the Chelsea squad.

Similarly, Willian (76) was the only Chelsea player to lay on more key passes over 2019-20 than Mount's 52 and he appeared in more league games than any of his team-mates (37).

But those points don't quite tell the whole story. To say he was consistent throughout the season would be a lie, as after the turn of the year there was a growing sense of frustration regarding his form. Between the start of November and the final day of the season, his three assists amounted to a couple of corner deliveries for Antonio Rudiger to head home, and a free-kick against Arsenal that Bernd Leno made a mess of. Mount's one open-play assist of 2019-20 came on the final day of the season against Wolves.

Some felt Mount was being over-worked by Lampard, others put his issues down to being used in a variety of roles – one week he'd occupy a central midfield position, the next he could be deployed as a winger and then he might play as a No.10.

The "teacher's pet" tag began to raise its head, with Lampard's almost incessant use of Mount leading to suggestions of preferential treatment. 

A star of his own merit

When Thomas Tuchel was hired as Lampard's replacement in January, there wouldn't have been too many particularly worried for Mount's future given he had been a fixture in the team.

But when Mount was dropped for the German's first game in charge, Tuchel's decision certainly made people sit up and take note.

While he explained it away as opting to go with experience, dropping Mount suggested for arguably the first time since his return from Derby that he had a fight on his hands.

But it would be fair to say he's risen to the challenge.

"I understood and wanted to get back into the team, so that motivation and that fire that I have inside me came out," Mount said at a news conference last month. "I really tried to push to get back into the team. It's been brilliant."

Since then, he's become more productive almost across the board in the final third under Tuchel than he had been for Lampard in 2020-21.

Seemingly one of the main contributing factors is his role. While Lampard used Mount in numerous positions, Tuchel has largely deployed him further up the pitch in an attempt to get him closer to the opposition's penalty area – activity maps show a significant change between the two coaches' usage of the 21-year-old.

Not only is he involved in passing moves more often as a result, he's contributing to sequences that end in a shot with greater frequency as well. His 72 (7.8 per 90 minutes) during Tuchel's 12 Premier League matches is the second highest in the division since the German's appointment, while his 96 (5.6 per 90 minutes) involvements in Lampard's 18 top-flight games this term was the eighth most.

The expected goals value from these sequences has increased too, going from 0.43 to 0.65 per 90 minutes, meaning Chelsea are creating greater quality chances with Mount further up the pitch.

Furthermore, there's been a considerable improvement in his own productivity. While his chance creation record in the past may have been skewed by set-pieces, he's moved up the rankings in terms of open-play key passes per 90 minutes. With 1.5 each game, only 12 others have done better than Mount since Tuchel's arrival – beforehand, his 1.2 per 90 minutes had him 43rd in those rankings.

While he may still be without a single open-play assist in 2020-21, it's clear to see that Mount's strong associative talents and ability to play tidily in busier areas of the pitch make him a real asset to Tuchel, who has acted quickly to shift the England international into a position that seemingly suits him better.

Scoring has been an issue for them, with the likes of Timo Werner and Kai Havertz continuing to struggle, and this has undoubtedly impacted Mount as his expected assists from open play is 3.5 - with more clinical finishing he wouldn't still be sat on zero.

Mount's form lately seems to suggest that once Chelsea begin to click in front of goal, he'll be key to much of their build-up.

A homegrown beacon of hope

Throughout Roman Abramovich's time as Chelsea owner, the club has often found itself in a sort of purgatory – while they've undoubtedly wanted success and a first-team full of homegrown talents, it's difficult to say they've truly struck a balance between the two.

After all, since the start of the century, Chelsea products reaching 100 Premier League appearances for the club have been a rarity.

John Terry, of course, leads the way, but beyond him it becomes a bit murky. John Obi Mikel and Nemanja Matic perhaps come closest to fitting the bill, though both did play senior football elsewhere before joining the club as teenagers.

Granted, Mount remains a little way off yet as well having played 67 times in the top-flight for Chelsea, but he's quickly making up ground.

Not too far behind him are Tammy Abraham (56), Callum Hudson-Odoi and Ruben Loftus-Cheek (both on 54), while Andreas Christensen – at Chelsea since 2013 – has featured 70 times.

What's in store for their long-term futures at Chelsea remains to be seen – they are far less certain than Mount.

But Mount especially shows that where there wasn't much hope for young talent coming through at Chelsea in the past, now there is for arguably the first time in the Abramovich era.

Chelsea boss Thomas Tuchel said landing the Premier League's Manager of the Month award for the first time proves he made a shrewd move in joining the Blues.

The former Paris Saint-Germain and Borussia Dortmund head coach took the reins at Stamford Bridge in January.

With no equivalent honours available in France or Germany, Tuchel was slightly taken aback by the personal recognition of his efforts.

Chelsea are unbeaten in 10 Premier League games since he succeeded Frank Lampard, and Tuchel's award came for the team's results in March.

The London club beat Liverpool 1-0 and Everton 2-0 before they were held to a goalless draw by Leeds United.

"It's very unusual for us to have this reward," said Tuchel, whose team play West Brom on Saturday. "It's not an award you can achieve in France or Germany. It's very nice.

"I don't believe in individual awards in football, so when I receive one I am a representative for everyone here at Cobham.

"I am grateful to receive an award like this and it means I am at the right club. I see it as a team award. It feels good. It's not the end of the road. We still compete in April and May and we want to produce."

In all competitions, Chelsea are unbeaten in 14 games under their new head coach, having battled through to the quarter-finals of the Champions League and the semi-finals of the FA Cup under the German's stewardship.

That is the longest unbeaten start by any Chelsea boss and another record could soon come their way.

Ahead of the West Brom game at Stamford Bridge, Chelsea are yet to concede a single goal in their five Premier League home games under Tuchel.

In English top-flight history, the only team to keep a clean sheet in their first six home games under a specific manager are Manchester City under Ron Saunders in 1973-74.

Thomas Tuchel confirmed Tammy Abraham sustained a recurrence of an injury which has kept him out of action in recent weeks, urging the Chelsea forward to be cautious with his recovery.

Abraham has not featured for Chelsea since February 22, due to a combination of injury and his form in training.

Coming into the FA Cup quarter-finals, no player had scored more goals in the competition this season than Abraham, who had netted four times across the third, fourth and fifth rounds.

However, the 23-year-old was again absent from the squad at Stamford Bridge on Sunday, and Tuchel – who on Friday instructed Abraham to be patient as he waited for an opportunity – revealed Chelsea's number nine had suffered an injury.

"Yes, he quit training yesterday after a five-minute warm-up so there was more or less no chance he could join the squad," Tuchel told a news conference after Chelsea's 2-0 win over the Blades.

"It was the same injury, more or less, but he had a re-injury in more or less the same spot where the first injury was so he is in pain and he had to quit the session after five minutes with no chance he could join us today.

"The most important thing for Tammy is be fit. The second is then to take things step by step, to train and fight for his way back.

"His way back is maybe to be a substitute and to be hungry and full of quality in training. These are the next steps.

"Now is not the time to worry about the first eleven because he is out now for many games, unfortunately too many games.

"It's absolutely not his fault and he is hungry to come back. He tries all the time but this is the risk with pushing the players to be back as soon as possible.

"It was an accident in training. So nobody's fault. So now is a kind of restart and we hope he can use the next two weeks to get fit again."

Despite his recent struggles, Abraham is Chelsea's leading scorer this season with 12 goals in 30 matches across all competitions.

He has taken 10 of 16 'big chances' – opportunities from which Opta would expect a player to score – far better than Timo Werner's rate of eight from 26.

Of Chelsea's three central strikers, Olivier Giroud (103) boasts a better minutes per goal ratio than Abraham (127), while Werner is down at 284.

Creatively, Werner has been far more profitable, crafting 31 opportunities, in contrast to 13 from Abraham.

Thomas Tuchel was not surprised Chelsea failed to keep control of their FA Cup tie with Sheffield United following a grueling run.

Chelsea were rather hanging on for much of the second half at Stamford Bridge on Sunday, though Hakim Ziyech's stoppage-time effort secured a 2-0 win, with Oliver Norwood's own goal having put the Blues ahead after 24 minutes.

The hosts have progressed to their 25th FA Cup semi-final, the third most of any club behind Everton (26), Manchester United and Arsenal (both 30), while they remain unbeaten in Tuchel's 14 matches in charge.

Chelsea have kept clean sheets in each of their last seven games – their best run since December 2005 (also seven) – while of sides within the 'big five' European leagues, only Manchester City (14) have won more games across all competitions than Chelsea (10) since Tuchel took over.

The Blues had fewer shots on target (three compared to four) than the Blades, with David McGoldrick squandering a golden chance to restore parity midway through the second half, but Tuchel revealed he was expecting a drop-off in his team's performance levels.

"It was a tough match, we had a good first half where we controlled everything but in the second we lost control, we were clearly tired," Tuchel told BBC Sport.

"I could see after the 14 matches, I could see us tire, a lack of concentration, many faults and strong opponents in the second half, so we were lucky to keep the clean sheet but I think it was the first time in 14 matches that we were lucky and allowed too many chances.

"It can happen, it's important in the end in the cup to go through. This was the target and we reached it.

"We let them come back, because we had full control in the first half, we had a big chance with Christian [Pulisic] in the second half to finish the game very early and after that we made too many easy mistakes, lost duels and lost a bit of concentration, momentum.

"Honestly I could feel it in training, some days we feel a bit tired and a lack of concentration, it's normal. It gets more problematic to keep the level up. I'm happy we got help from the bench."

It was a sentiment echoed by Pulisic, who turned in a bright performance up front for Chelsea, forcing Aaron Ramsdale into two impressive saves.

"They didn't make it easy on us," the United States international told BBC Sport.

"We knew that they had quality, we had to suffer a bit in the second half but in the end it's another clean sheet and a good performance.

"We definitely have a confident bunch of guys. Obviously, when you go on a streak like this you're feeling really good, we think we can beat anyone, it's a good feeling."

Chelsea's unbeaten start under Thomas Tuchel rolled on as Oliver Norwood's own goal and a late Hakim Ziyech strike sent the Blues into the FA Cup semi-finals with a 2-0 win over Sheffield United.

Appearing in their 15th FA Cup quarter-final since the turn of the century – the most of any side – Chelsea were not at their sharpest at Stamford Bridge on Sunday but, as they have done in many of their 14 matches under Tuchel so far, managed to grind out a result.

Norwood's own goal put Chelsea ahead, with David McGoldrick missing a golden chance to restore parity when he headed wide from five yards out.

Chelsea made their fortune count, holding firm in rather nervy fashion before hitting the Blades on the break and securing their progression thanks to Ziyech, reaching the semi-finals for the fourth time in five seasons.

Playing at the end of a difficult week personally following the death of his brother, Phil Jagielka might have put United ahead early on but failed to generate enough power on his header to trouble Kepa Arrizabalaga.

Yet United's bright start ultimately proved fruitless – Chelsea striking first when Norwood diverted Ben Chilwell's effort beyond Aaron Ramsdale.

Norwood was almost at fault for another goal before half-time when his stray pass was intercepted by Christian Pulisic, though Ramsdale rushed out to spare his team-mate's blushes.

Displaying some terrific footwork, Pulisic engineered another chance straight after the restart, but Ramsdale again stood firm.

McGoldrick should have built on Ramsdale's save, only to head wide of a gaping goal from point-blank range.

Kepa had work to do soon after – McGoldrick's strike partner Oli McBurnie forcing a smart save out of the Spaniard.

Rhian Brewster then saw a strike deflected into the side netting, yet for all United's pressure, Chelsea dealt the knockout blow when substitute Ziyech drilled in from close range at the end of a sweeping counter to ensure the Blues progressed.

Thomas Tuchel has warned his Chelsea stars they must not develop a fear of losing as they bid to extend their unbeaten run under his leadership.

Former Paris Saint-Germain head coach Tuchel believes having an obsession with avoiding defeat can peck away at the appetite to win, and he pointed to discussions with a top cycling boss as reinforcing his views.

Tuchel did not name the Team Sky leader with whom he once spoke about the mentality needed to be a champion in sport.

That individual was likely to have been Dave Brailsford, the long-time manager of the cycling squad which has since been rebranded as Team INEOS.

"I spoke many years ago here in London to the leader of the cycling team of Sky, and he was very, very concerned about the feeling, not to enter a state of mind where you fear the loss more than the hunger, than the adventure to maybe win," Tuchel said.

"To refocus is always at the process. If we look too much at what we have achieved... maybe you step back and want to protect it, but I want us always to be brave and go for the next win and not to avoid the loss."

Chelsea face Sheffield United in the FA Cup quarter-finals at Stamford Bridge on Sunday, looking to go deeper into the competition as Tuchel looks for a trophy from his first half-season at the helm.

By racking up 13 games unbeaten since taking over, Tuchel has established a club record for the longest run of games without defeat by a new Chelsea boss.

"The record is already history and the next game is Sheffield. This one game, this is the most important," Tuchel said.

"I demand from myself and the team and everybody the maximum and then we will see. If we have all this, it is possible to have big records, but I hope we don't enter into situations where we are more afraid of losing a record than winning the next game."

The Blues are also through to the Champions League quarter-finals and are chasing a top-four finish in the Premier League.

Tuchel says he has never treated any match as more important than another and says his players must "control our energy and our mentality", even if they cannot be certain of achieving the right results.

"This is what I demand from my team: to prepare in the best way possible and get the head straight and be out with the same competitive attitude like we played the last 13 matches," he said. "This is it at the highest level. You can never relax."

When it comes to his squad, Tuchel knows he cannot keep every player entirely happy, with the likes of Tammy Abraham and Billy Gilmour struggling to break into his team at present.

He is determined to stay close to every player and keep them fully connected with his plans for them.

"Is there always good news in these talks? No, there is not," Tuchel said. "But if you need to give the feedback, this is clearly my job to do, to give honest feedback, open feedback, direct feedback.

"And so, it makes it easier for them to understand what we expect and what role they can fulfil, even if it maybe does not match with the way they wanted to have it.

"There are hard decisions to make, which is a good thing, because it shows you have a good squad."

Thomas Tuchel has no concerns over the application or attitude of Tammy Abraham and Billy Gilmour, but he understands their frustration at a lack of game time.

Abraham has not featured for Chelsea since February 20, while Gilmour has made just one appearance, in an FA Cup tie against Barnsley last month, under Tuchel.

With Euro 2020 coming up at the end of the season, both players missed out on their respective national squads for the upcoming March internationals.

Tuchel knows this could be of concern but insisted that he was at fault in Abraham's case, rather than the striker, who has scored six league goals this season.

"He's had a bit of a tough time," Tuchel said of Abraham in a news conference previewing Sunday's FA Cup clash with Sheffield United.

"He suffers a little bit also from me not finding the real formation up front. Like, 'Okay, let's play always like this, this is your position, these are the guys you compete against, try to compete against A, B and C and therefore you can go'.

"It's a bit more complex because I need to get to know the team better. We have Timo [Werner] who can play as a number nine, we have Olivier [Giroud] and Kai [Havertz], so he suffers a little bit from all these circumstances.

"It's not his fault, it is also maybe more my fault than his fault. We have some talks now to encourage him never to give in, to accept the situation and to not overthink it and to just come back to the momentum in training and to stay positive.

"The team is winning now without him, he could feel a bit excluded, but it is not like this with him so hopefully he can be back now in the squad, be totally free. There are some hard choices, there's still a long way to go and he’s part of it."

Across all competitions, Abraham averages a goal every 127 minutes, while he boasts an admirable big chance conversion rate of 62.5 per cent (10/16).

All 12 of Abraham's goals this season have come from inside the box, and his shooting accuracy stands at 51.22 per cent – excluding blocked efforts.

Asked if England international Abraham had voiced any concern over his participation in the Euros, Tuchel replied: "We have not talked about this. I feel more concerned about his role in our team.

"He clearly knows a role in our team improves the chances for him to have a role in the English national team, for sure.

"We did not talk about it, but it would not surprise me if it's in his head. This is totally normal that the players have their own interests to have a role in their team but also for their country.

"I hope that he's not too harsh on himself and does not overthink it. What is important is the situation in the club and he has every chance to find his way back."

In Gilmour's case, Tuchel stressed the Scottish youngster's limited opportunity has been merely down to the quality of Chelsea's midfield options.

"He has three big problems – N'Golo Kante, Kovacic and Jorginho," Tuchel said.

"They are never injured and perform on a level in central midfield, it is not easy to compete with them. This is the only thing. I have no trust issue with him, I have no problem with his attitude."

Thomas Tuchel's view of football was changed by Ralf Rangnick and in Ralph Hasenhuttl he is looking forward to going up against another coach who worked alongside him.

Chelsea head to Southampton on Saturday and Tuchel will pit his wits against Hasenhuttl, who coached RB Leipzig during Rangnick's time as director of football at the Red Bull Arena.

Tuchel was a defender at Ulm for Rangnick between 1997 and 1998 and, following the premature end to his playing career due to a knee injury, was hired as a youth coach at Stuttgart by him two years later.

Rangnick is credited with revolutionising German football by introducing an intense high-pressing, counter-attacking style that was widely adopted.

His influence on Tuchel is clear, with Chelsea allowing the fewest opposition passes per defensive action (PPDA) in the Premier League since his first game in charge against Wolves on January 27.

Across the entire season, Southampton rank fourth in the league with a PPDA of 10.7, behind only Liverpool (10.4), Chelsea (10.3) and Leeds United (8.9).

"I was a player with Ralf Rangnick. I played in the third and second division and learned from Ralf that it's not necessary to follow the striker to the toilet," Tuchel told the media.

"He made a third-division team stronger than we actually were with brand new tactics, the back four not man marking but defending in the space in a 4-4-2 or 4-5-1.

"That was a gamechanger for me to watch football games after my experience with Ralf. It was different because I had a totally different view of what's going on.

"Ralf had his influence at Leipzig when he worked with Ralph as more or less the father of everything that happened in Leipzig.

"There are many coaches influenced by this philosophy, but I truly believe everybody has to find his own style, everybody needs to be authentic. You need to be yourself. You cannot copy anybody.

"The way from Ralph is very impressive. He had a very good season at Ingolstadt, very successful at Leipzig and now a big impact with his aggressive style of playing at Southampton.

"This is the challenge that we have to face. I cannot give you a reason why there is a trend, this is too much of a question for me right now."

Tuchel is unbeaten in six games since taking over at Chelsea, winning five straight since a 0-0 draw with Wolves in his first match.

Olivier Giroud found the back of the net in their 2-0 success over Newcastle United last Monday and Tuchel intends to give the France striker time to stake his claim for a new deal, with his contract due to expire at the end of the season.

Tuchel said: "No decision is made because it's too soon to make these decisions. [It's] too soon in the season and I haven't had enough time to make these decisions because I just started three weeks ago and we need more time to get to know the group better. Everybody deserves more time to show their value.

"What I can say is that I am super happy that he's here. He's one of the top strikers in the box, he's physically strong, he has an incredible first touch and he's strong in headers.

"He did an amazing game against Newcastle. He's very strong, very positive in training, very impressive.

"Right now, he plays a key role in the squad with a lot of young offensive players. He is a key figure, maybe not because he plays every three days 96 minutes, but because of the way he behaves and with his experience on a daily basis, he has a huge impact in the most positive way.

"This is what I can say. When the decision arrives, we will make it."

Thomas Tuchel felt his Chelsea side showed a lack of courage and said he "expected more" from them in a 1-0 FA Cup fifth round victory at Barnsley.

Tammy Abraham's 12th goal of the season after 64 minutes at Oakwell on Thursday ensured the Blues will face Sheffield United in the quarter-finals at Stamford Bridge on the weekend of March 20-21.

That was the London club's only short on target as well-drilled Championship side Barnsley put up a great fight after being hammered 6-0 by the same opponents in the EFL Cup last September.

Tuchel switched to a back four at half-time, replacing Andreas Christensen - who took a knock on the head - and Marcos Alonso with Antonio Rudiger and Reece James.

The Chelsea head coach has overseen four wins and a draw since replacing Frank Lampard last month, conceding just one goal in the process, but wanted to see more from a much-changed side.

Tuchel, who cut an animated figure on the touchline, said: "The changes [he made at half-time] made it a little easier to get into the opponent's half and overcome the first press.

"We did it well at the start of the second half and played constantly in the opponents half. We scored the goal and I had the feeling that they increased the risk but we stepped down in the little decisions.

"Not enough courage and it was too deep for a long, long time. We clearly can play better, so yes I expected more but not in terms that I am frustrated.

"If you lack a rhythm and a bit of self-confidence and you have to show on this pitch, against an opponent that takes all the risk and plays the game of his life, that is not easy. We can do better but I don't want to be too hard on the players."

Chelsea beat the Blades 2-1 at Bramall Lane last weekend but Tuchel is happy not to be travelling back to South Yorkshire to face a team who are bottom of the Premier League and looking destined for the drop.

On playing Sheffield United in the last eight: "It’s going to be a tough one. They are a very physical team that presses high. They are organised but I am happy to have a home game. This is what we wanted."