Liverpool left back Andrew Robertson said he and his team-mates are "enjoying" their hectic schedule as they earned a 2-0 first leg lead in their Champions League semi-final against Villarreal.

An own goal and a Sadio Mane strike, both early in the second half, was enough for Jurgen Klopp's men to secure a decent cushion ahead of next Tuesday's second leg in Spain.

Villarreal frustrated Liverpool at Anfield in the first half, but were unable to stop them from winning their ninth Champions League match of the season, the most games the Reds have ever won in a single campaign in European competition (excluding qualifiers).

Speaking to BT Sport after the win, captain Jordan Henderson praised the visitors, and said staying "positive" was key for Liverpool.

"Yeah, very organised team," Henderson said about Unai Emery's side. "We knew they'd make it difficult, but it was important that we just kept going, stay positive and we had the confidence that if we did that, kept moving the ball quickly, we'd eventually break them down, and we did that with two good goals."

It was Henderson's cross that deflected in off Pervis Estupinan to finally break the deadlock, and when told it had deflected, the England international jokingly replied: "Did it? I thought it went straight in!

"Yeah a little bit lucky, but it was good play, good build up... But, you need a little bit of luck against teams with a low block. We got that with the first and thankfully we got another one."

Liverpool had 19 shots to Villarreal's one on a dominant night for the Reds. The Yellow Submarine's one shot, which missed the target, is the joint-fewest by any side in a Champions League semi-final according to Opta since this data has been available (2003-04), along with Inter v Barcelona in 2009-10.

Robertson was also asked by BT Sport about the game, and he was keen to point out that the players are enjoying themselves, with an unprecedented quadruple of the Premier League, Champions League, FA Cup and EFL Cup still possible.

"We had quite a few chances in the first half, just trying to break them down and keep doing what we were doing," the Scotland captain said. "The first goal always kind of does that [gives you a boost], we then had a bit of momentum. The noise in here was incredible after the first goal and that kind of took us to the second one.

"We'd have liked to add maybe one more, it wasn't meant to be but a clean sheet and two goals? We can't argue with that.

"You have to [work hard], it's the semi-final of the Champions League. If you can't run about for 90 minutes in this kind of game then when will you?

"Our intensity's been really high the last couple of games, we've had a real hectic schedule and we're enjoying it. I think you seen that today.

"There's still a lot of work to do in this tie, but we're happy with our work tonight."

Also asked about not getting frustrated by a stubborn Villarreal defence, Robertson added: "That was the message from Hendo at half-time, just saying we were playing well first half, probably some of the best we've played and we didn't get a goal for it, but we kept going, kept trying to be patient and luckily with a big deflection (smiling at Henderson), we managed to get the breakthrough."

After 45 minutes of this Champions League semi-final first leg, the travelling Villarreal fans had every reason to believe they might be witnessing another miracle.

Their team had made it to half-time in the cauldron of Anfield having kept the score at 0-0, and they had also - at times - made a quadruple-chasing Liverpool look short of ideas.

As such, thoughts will no doubt have turned to the recent shock wins over Juventus and Bayern Munich, and the possibility of taking another major scalp back to Castellon.

Unfortunately, any supporter in yellow thinking along those lines had not accounted for the fact that, even among Europe's elite clubs, there are levels.

And, although Manchester City might have a strong case to be ranked alongside them, Liverpool are otherwise alone at the summit. 

It did not look much like that during an opening period that ended with the hosts having taken 12 shots, the most in a Champions League semi-final first half without scoring since such data was first collected in 2003-04.

That owed much to Villarreal's sheer refusal to offer up quality chances, with the midfield and defence working beautifully in tandem to deny all space.

The dark arts were also being deployed impressively, goalkeeper Geronimo Rulli taking as much time as he could over goal kicks, while cheap fouls were bought from frustrated opponents.

However, as he proved during Sunday's Merseyside derby win over Everton, Jurgen Klopp is never better than when given a half-time puzzle to solve.

And it looked from the very first whistle of the second period that the German had repeated the trick once again.

Suddenly, there was an extra zip to Liverpool's play, and their visitors' previously solid shape was beginning to look porous as players were dragged out against their will.

Admittedly, there was an element of fortune to the Reds' opener, Pervis Estupinan's attempted block looping over a stranded Rulli and into the back of the net.

But it had been earned through a rapid left-to-right passing exchange that opened space for Jordan Henderson to cross - the sort of move that had been missing in the first half.

From there, Liverpool smelled blood, and just two minutes later had put together another slick pattern to leave a rattled Villarreal two down. 

It was a whirlwind attacking flurry that so few teams can produce, one that will have given Klopp confidence that a third Champions League final appearance with this club awaits.

As impressive as their route to this stage of the tournament has been, Villarreal never trailed either Juventus or Bayern by more than a single goal at any stage of those ties.

And it is hard to imagine how they might close that deficit in Spain next week without opening up too much against such deadly opponents. 

Stranger things have happened, of course, but the likelihood is that a meeting with a Liverpool team eyeing the history books will prove to be a step too far for Villarreal. 

Liverpool are in the driving seat of their Champions League semi-final against Villarreal after a 2-0 win at Anfield on Wednesday.

A game that was never likely to match the excitement of Tuesday's seven-goal thriller between Manchester City and Real Madrid finally came to life in the second half as an own goal from Pervis Estupinan and a Sadio Mane strike sealed a strong first-leg advantage for the Reds.

Unai Emery's side defended resolutely for much of the game, managing to get to half-time goalless, but they were ultimately undone by some typically fast attacking from Jurgen Klopp's team in the second half.

This was Liverpool's 12th European Cup or Champions League semi-final, with no English side playing in the final four more often (level with Manchester United), and was also the first time the Reds have played in the semi-finals of the EFL Cup, FA Cup and European Cup in the same campaign, and it was that experience of the big occasion that ultimately shone through.

It was a tentative start from the home side, though Mane will have expected to do better with a header when found by a neat cross from Mohamed Salah early on with the Senegalese forward directing his effort wide.

Thiago Alcantara came as close as anyone to breaking the deadlock in the first half with a shot from almost 30 yards that crashed against the left-hand post, but the visitors did a good job of frustrating the Premier League side in the opening 45 minutes.

An electric beginning to the second half from Klopp's side finally saw them take the lead in the 53rd minute, with Jordan Henderson's cross from the right taking a fortunate deflection off the foot of Estupinan and flying past Rulli at his near post.

Another arrived just two minutes later as a good passing move ended with Salah sliding a ball through to Mane, who prodded under the goalkeeper to make it 2-0 to the Reds.

The Yellow Submarine avoided further damage but have it all to do when the two meet again in the second leg at the El Madrigal next Tuesday.

What does it mean? Liverpool show patience to break through, again

Liverpool finally overcame a determined Everton in the Merseyside derby on Sunday, it was said to be perfect preparation for Villarreal, who were always going to come to Anfield to frustrate in the first leg.

That proved to be the case as, like with the Toffees, Villarreal kept Liverpool at bay in the first half, running down the clock, blocking all attacks and keeping their net unbothered.

However, the relentless Reds again managed to force a couple of second half goals, having had 19 shots in all, facing just one solitary effort from the visitors.

Thiago once again shines in the middle

The former Barcelona and Bayern Munich midfielder has been purring in Liverpool's midfield in recent games, and he was on form again here as he helped to dissect a stubborn opposition.

Thiago completed 99 of 103 passes (96.1 per cent), enjoying a fantastic pass completion percentage in the opposition's half of 94.1 from 68 attempts. He also made more interceptions than anyone (five) and gained possession 10 times in all.

More English misery for Yellow Submarine

Emery's men put up a brave fight but eventually succumbed to a strong and determined Liverpool team, and it maintained a poor record for Villarreal in England.

Since a 2-1 victory on Merseyside against Everton in August 2005, Villarreal have not managed to win any of their last nine away games in England in all competitions (drawn three, lost six), having also tasted defeat at Manchester United in the group stages earlier this season.

What’s next?

Liverpool travel to Newcastle United on Saturday as they resume their title chase in the Premier League, while Villarreal are away to Deportivo Alaves on the same day.

The former Barcelona and Bayern Munich midfielder has been purring in Liverpool's midfield in recent games, and he was on form again here as he helped to dissect a stubborn opposition.

Jurgen Klopp has made three changes to his starting line-up for Liverpool's Champions League semi-final first leg against Villarreal.

With his side having claimed a 2-0 Merseyside derby victory over Everton last time out, the German has looked to freshen things up in defence, midfield and attack.

As has become customary during two-game weeks this season, Ibrahima Konate comes into the centre of defence to replace Joel Matip.

In the centre of the park, the captain Jordan Henderson takes the place of Naby Keita.

And up top, January signing Luis Diaz joins Sadio Mane and Mohamed Salah, with Diogo Jota dropping to the bench.

Roberto Firmino is not among the substitutes as he recovers from injury, while Curtis Jones and Kostas Tsimikas are both out with illness.

Liverpool: Alisson, Alexander-Arnold, Konate, Van Dijk, Robertson, Fabinho, Thiago, Henderson, Salah, Mane, Diaz.

The Premier League has rearranged games involving Manchester City and Liverpool to set the final schedule for what promises to be an exciting title race.

Pep Guardiola's side are one point ahead of Jurgen Klopp's Reds at the top of the table with five league games remaining for both.

City's trip to face Wolves at Molineux, which was originally supposed to be played on the weekend of their FA Cup semi-final defeat to Liverpool, will take place on Wednesday, May 11.

Meanwhile, with Liverpool's involvement in the FA Cup final against Chelsea on Saturday, May 14, their away game at Southampton has now been set for Tuesday, May 17.

That means Jurgen Klopp's men will have to play two games in the final week of the campaign, with the last matchday scheduled for Sunday, May 22.

Reigning champions City still have to play Leeds United (a), Newcastle United (h), Wolves (a), West Ham (a) and Aston Villa (h).

Meanwhile, Liverpool's remaining games are against Newcastle (a), Tottenham (h), Aston Villa (a), Southampton (a) and Wolves (h).

WIth both teams also involved in the Champions League semi-finals, it promises to be an intense end to the season, especially for Liverpool, who can still win what would be an unprecedented quadruple.

Liverpool welcome Villarreal to Anfield on Wednesday and are heavy favourites in their Champions League semi-final tie.

Under Jurgen Klopp, the Reds have become one of the world's best teams. They have reached two Champions League finals, winning their sixth title in the competition in 2019, and followed that up with a maiden Premier League crown a year later. This season, their eyes are fixed firmly on an unprecedented quadruple – the EFL Cup is already theirs, they will face Chelsea in an FA Cup showdown next month and their race in the league with Manchester City is set to go to the wire.

Standing in Liverpool's way of a final against Manchester City or Real Madrid are, however, Unai Emery's Villarreal. While the Yellow Submarine will be considered underdogs, the reigning Europa League champions will be no pushovers.

Liverpool were frustrated for just over an hour by their relegation-threatened local rivals Everton in the Merseyside derby on Sunday, until Andy Robertson headed home and Divock Origi settled matters late on. They should be anticipating a similar test on Wednesday.

Yet whereas Everton are devoid of confidence or quality, Villarreal have both in abundance. They have already overcome European heavyweights in the form of Juventus and Bayern Munich, and will have home advantage in the second leg. They averaged just 35 per cent of possession across the two legs against the Bundesliga giants.

The last time these semi-finalists met was in the last four of the 2015-16 Europa League, and the two legs of this tie will come just a day under six years after each match in that previous fixture. Back in 2016, matters were rather different for Liverpool, who progressed 3-1 on aggregate, but went on to lose in the final to a Sevilla side coached by Emery.

It is fitting, then, that as Liverpool bid for European glory once more, a team that stood in the way of their first continental final under Klopp will try to prevent the Reds reaching a fourth with the German at the helm.

A remarkable turnaround

A quick glance at the team that started in the second leg of that 2016 tie, which Liverpool won 3-0 at Anfield, tells you the transformation that the Reds have gone through under Klopp has been dramatic.

Simon Mignolet started in goal, behind a back four of Nathaniel Clyne, the now-retired Kolo Toure, Dejan Lovren and Alberto Moreno (who might have been facing his former club for Villarreal if not for a serious knee injury sustained last month). Roberto Firmino and James Milner started, but they are the only two of that 18-strong squad that remain at Liverpool, and neither can be considered regular starters anymore.

Liverpool were convincing winners – racking up an xG of 3.8, producing 25 shots with 12 of those on target.

The team that take to the field on Wednesday will almost certainly feature a world-class goalkeeper in Alisson, one of Europe's best defenders in Virgil van Dijk, a Champions League-winning midfielder in Thiago Alcantara, two exceptional full-backs and, of course, a devilishly potent attacking trident, whichever three of Mohamed Salah, Sadio Mane, Diogo Jota or Luis Diaz line up. Firmino is unavailable.

Salah has returned to goalscoring form in timely fashion, after a relative dry spell. Only in 2017-18 (10) has he scored more Champions League goals in a single campaign than the eight he has netted this season, moving his tally for the club to 33. He is now just three behind both Didier Drogba and Sergio Aguero for the most goals scored in the competition for an English side.

For Klopp to take that Liverpool team back in 2015-16 to two finals (they lost on penalties in the EFL Cup to Manchester City that year) was, looking back, an extraordinary achievement, especially considering he only took over in October.

Since then, they have gone from strength to strength. In the Premier League, Klopp has won 162 of his 253 games (64 per cent), with his team scoring a remarkable 544 goals, and the German has averaged 2.15 points per game. He is building a true dynasty.

Emery to have his say?

"Unai's a world-class coach and is doing an incredible job," said Klopp in his pre-match news conference on Tuesday. And he is right, Emery – perhaps unfairly maligned during his stints at Arsenal and Paris Saint-Germain – has been brilliant for Villarreal.

He could well have left for cash-rich Newcastle United earlier this season but elected to stay put, and Villarreal are, at least in Europe, reaping the rewards. Their shoot-out success against Manchester United in last season's Europa League final represented Emery's fourth triumph in UEFA's second-tier tournament, and he also took Arsenal to the final in 2018-19, losing to Chelsea.

Villarreal are not flying quite as high in LaLiga, though surely that can be forgiven. They sit seventh, having won their last two games, and still have hope of qualifying for European competition through the league, too.

Emery has taken on Klopp five times as a coach, winning the first meeting – that Europa League final back in 2016.

Klopp claimed victory in two of the three Premier League encounters with the Spaniard's Arsenal, with those victories being 5-1 and 3-1 respectively. The other league match was drawn 1-1, while Liverpool also beat Arsenal on penalties in the 2019-20 EFL Cup after a wild 5-5 draw.

Emery can feel hard done by that he was not given more time at PSG. His win percentage of 76 was the best of any coach during the QSI era, putting him above the likes of Carlo Ancelotti (64) and Thomas Tuchel (75). He succeeded in 87 of his 114 matches in charge and claimed seven trophies. Only Laurent Blanc (11) has won more silverware at PSG since 2011, while Emery's team scored 2.7 goals per game, with just Tuchel managing to match that.

Yet Emery's ability to get a side competing way beyond their expected level is what he is renowned for. His run of three successive Europa League titles with Sevilla was extraordinary, and he seems to be in a similar position at Villarreal.

Having to rebuild his reputation slightly after his spell at Arsenal, Emery has won 51 of 104 matches in all competitions (49 per cent), with Villarreal scoring 188 goals and conceding 101, keeping 37 clean sheets.

Emery's win percentage has not been beaten by any other Villarreal coach to have taken charge of 100 matches, while in Gerard Moreno, who has directly contributed to 60 goals during Emery's tenure, the Spanish side have a brilliant striker to call on.

Liverpool have, in many ways, come full circle with this tie, but the Villarreal they will face on this occasion have improved just as much, in relative terms, as Klopp's team have. It is set to be a fascinating tussle.

Erik ten Hag appears as though he will have a huge say over his own Manchester United transfer targets.

The Dutchman has inked a three-year deal at Old Trafford, with the option for a further year.

Ten Hag will officially take over on July 1, with Ralf Rangnick remaining in interim charge.

A face familiar to the Premier League could now be headed to Old Trafford with Ten Hag from Ajax…

TOP STORY - TEN HAG TO BRING HALLER TO UNITED

Manchester United may make a move for Ajax striker Sebastien Haller in the off-season according to The Sun.

Haller currently plays under ten Hag, who will take over at United at the end of the campaign.

The Ivory Coast striker, who spent two years with West Ham United, has netted 33 goals in all competitions for Ajax this term.

ROUND-UP

- Barcelona are optimistic that they can land Bayern Munich forward Robert Lewandowski in the off-season, reports Sport. Lewandowski is contracted with Bayern until 2023.

- Liverpool have contacted 22-year-old Monaco midfielder Aurelien Tchouameni about a move to England, claims Foot Mercato.

- Nicolo Schira claims that Inter are not interested in signing Bosnian midfielder Miralem Pjanic, contrary to reports. Pjanic is currently on loan at Besiktas from Barcelona.

- David de Gea and Manchester United are ready to enter into talks on a contract extension reports 90min.

- Fabrizio Romano claims that Luka Modric will ink a new deal with Real Madrid running until 2023.

Referee Stuart Attwell was correct not to award Everton a penalty in Sunday's Merseyside derby at Anfield, according to former Premier League official Mark Clattenburg.

Relegation-threatened Everton wanted a spot-kick when Liverpool's Joel Matip challenged Anthony Gordon in the area early in the second half when the game was goalless.

The claims were waved away, though replays suggested there was contact between the pair.

After the match, Gordon told Sky Sports that Matip had stepped on his foot, while Frank Lampard suggested that had the incident occurred at the other end of the pitch, and an Everton player had challenged Mohamed Salah, a spot-kick would have been awarded.

Everton have reportedly contacted the Professional Game Match Officials Limited (PGMOL) over the incident, while it has been reported that the Football Association (FA) have asked Lampard to explain his comments.

Former Liverpool defender Jamie Carragher said on Sky Sports that it was a "stonewall penalty" but suggested that Gordon, who had been booked for simulation earlier in the match, had to be careful not to build a reputation of being a diver.

Though Clattenburg disagrees that it was a penalty, he did echo Carragher's sentiments. 

"It's difficult because Gordon got cautioned early in the match," Clattenburg told Stats Perform. "I've watched him over the last months and he does go to ground a little bit too easy.

"And you don't prejudge things, you never prejudge things as a referee, however, it's in there as a doubt in your back of your mind that when a player goes down on the little contact, that you're probably not going to give him the benefit of the doubt.

"So he probably didn't get the benefit of the doubt on the second one after being cautioned earlier and a match for simulation.

"If he had a chance to stay on his feet, I think he could have had the chance and he took the option to go down and the contact's minimal. For me, I think the best decision was play on."

There have been 12 bookings for simulation in the Premier League this season and half of these have been given to Everton players, with three of those coming across their two meetings with Liverpool.

The Reds, meanwhile, have gone 46 Premier League matches without conceding a penalty. That is 22 more than the next-longest active run (Manchester City - 24).

Asked about Lampard's comments, Clattenburg said: "I think that's a perception of football fans. From a refereeing point of view, we just want to get the right decision.

"With the support of VAR, the problem that they have sometimes is if the referee does give the penalty, the VAR wouldn't overturn it, because he doesn't give the penalty. He doesn't overturn it and people think well, why? Where's the right decision?

"There's no right decision or wrong decision as to what the referee gave at that time and he believed that Gordon had tried to win his team a penalty. Lampard's going to be upset - he's a coach, it was a really tight game at that point 0-0 at the time, so he's going to be upset because Everton could have won the Merseyside derby, fighting for their lives at the bottom."

Unai Emery says Villarreal must try and "surf the wave of experience" they have gained when they do battle with the "best-ever Liverpool" for a place in the Champions League final.

Villarreal dumped out Serie A giants Juventus and Bundesliga champions Bayern Munich on a surprise run to the last four.

The Yellow Submarine travel to Anfield for the first leg on Wednesday plotting to tear up yet another script.

Villarreal beat Manchester United in the Europa League final last season and it would be an incredible story if they won Europe's premier club competition in Seville next month.

Emery rates Premier League title contenders Liverpool, who are eyeing an unprecedented quadruple, as the favourites to lift the trophy and knows his side are no longer a surprise package

The Villarreal head coach said at a pre-match news conference on Tuesday: "We face a bigger challenge than before. The surprise factor is no longer there. They are the number one favourites to win this competition.

"The team is a mirror of their coach, Jurgen Klopp, in terms of playing with joy, with enthusiasm. They are in the best moment.

"I remember my experiences against Liverpool [when he was Arsenal boss] at Anfield as challenging. I recognise the work done and the identity created by Klopp, which has since been further improved.

"I see that as an additional motivation for me, to try and beat the best-ever Liverpool. For that we will need to show our best version."

Emery says the LaLiga side must draw on the experience they have gained from their exploits in Europe.

He added: "We have been able to compete against big teams like Juve and Bayern, so they know it will be a tough game and will have to be 100 per cent and give it all at Anfield.

"Of course they will feel favourites as that is natural. It is an even higher difficulty than Juventus and Bayern Munich.

"We will try to surf the wave of experience we started accumulating last season."

Villarreal have not won in their previous eight matches in England, but their last victory came on Merseyside against Everton in August 2005.

Raul Albiol says reaching the Champions League final with Villarreal "would become a milestone in the history of football" as they prepare to take on Liverpool in the last four.

The Spanish club have already defied the odds by eliminating heavyweights Juventus and Bayern Munich en route to setting up a two-legged showdown with Liverpool.

Villarreal are up against English opponents for the fourth time out of their past five major European semi-final appearances.

That includes a 3-1 aggregate defeat to Liverpool at this stage of the 2015-16 Europa League, and they enter this latest encounter as underdogs despite their impressive run.

While aware of the size of the task that awaits his side, Villarreal skipper Albiol is eager to write his name in club folklore by keeping their European adventure alive.

"It would be a dream to play the Champions League final with Villarreal, a humble and hardworking team that has struggled to remain among the elite," he told UEFA's website.

"A club coming from a town with 50,000 inhabitants making it to the Champions League final would become a milestone in the history of football. 

"So, it would be something that not only Villarreal supporters would remember but many football lovers."

Albiol has won eight trophies at club level across an 18-year career, including the Europa League with Villarreal last season.

That ensured a place in this term's Champions League, and Villarreal have lost just two of their 10 matches thus far.

Reflecting on the past year, Albiol – a member of Spain's 2010 World Cup-winning squad – said: "The Europa League's helped us have these experiences in the Champions League. 

"They are not at the same level, but last year we started to be a competitive team in Europe and to know how to play in tough knockout rounds.

"I think that now, by eliminating Juve and Bayern, we have shown that the team has personality, knows how to suffer; we have come through in difficult moments.

"Winning the club's first European title was historic, but if we suffer defeat to Liverpool, it could be historic too. 

"So, we have to do our best during these two matches to try to do it; we have to give everything to write another chapter in history.

"If Villarreal got into the Champions final, it would be something historic for a club, and a village, such as Villarreal."

Villarreal are winless in their past eight trips to England in European competition, most recently losing 2-1 to Manchester United in the group stage seventh months ago.

Belief is high in the Yellow Submarine's camp, however, having also won back-to-back domestic matches to climb up to seventh in LaLiga.

"It reflects that with effort, dedication and team spirit, you can achieve great things – and that money and great players are not the only way to win titles," Albiol said. 

"In the end, we are a great group of players with a good level, who want to grow and improve, who work hard and spend many hours getting ready for every match with the staff. 

"We are now at that point in which we can believe."

Jurgen Klopp hailed Unai Emery as a "world-class coach" and vowed Liverpool will not underestimate Champions League semi-final opponents Villarreal.

The Reds are still in contention for an unprecedented quadruple and enter Wednesday's first leg with Villarreal at Anfield as strong favourites to advance to next month's final.

However, the Spanish club stunned Juventus in the last 16 and followed that up by eliminating a much-fancied Bayern Munich side in the quarter-finals.

Villarreal's domestic form has improved of late, meanwhile, having won back-to-back LaLiga games – against Getafe and Valencia – to move into seventh place.

Liverpool have progressed from nine of their previous 11 European Cup and Champions League semi-finals, but Klopp is taking nothing for granted against Emery's Villarreal.

"We are here because we got the results we needed," Klopp said at Tuesday's pre-match news conference.

"It's special to be part of the semi-final. It's a massive game. So many coaches and players work their socks off to be close to a semi-final, so we have to cherish it but enjoy it.

"We face a difficult opponent. They are made for this competition. The way they set up is really good.

"They may have had a little advantage where Juve and Bayern maybe underestimated them. That never happens with us, no chance of that. That advantage may have gone.

"They are a good football team that wants to make history. It would be the first time they would make the final, which is massive for them. But for us, it's the same importance."

Emery guided Sevilla to a 3-1 Europa League final win over Klopp's Liverpool in 2016 – one of 11 trophies he has won across an 18-year coaching career.

He took charge of Villarreal in July 2020 following a disappointing stint at Arsenal and guided the Yellow Submarine to Europa League glory last season.

"I have a lot of respect for Unai and Villarreal," Klopp added. "I've analysed them properly, and wow. Impressive.

"Unai is a detailed-obsessed manager who prepared for all different situations in a game. That's what his team executes. Different ways to press and react on different results.

"It's really, really impressive. Unai is a world-class coach and doing an incredible job there. The good thing about the analysis is we're not involved in those games.

"We must make life as difficult for them as possible. That's what we try to do over these two legs."

Liverpool beat Villarreal 3-1 on aggregate in their only previous European encounter, in the 2015-16 Europa League semi-final, with both teams winning their home leg.

Villarreal have not won any of their last eight away games on English soil, a run that includes a 2-1 Champions League group-stage defeat to Manchester United in September.

And Klopp will be looking to take a victory to Estadio de la Ceramica for next week's reverse fixture as Liverpool aim to make it a clean sweep of trophies this season.

"We have two halves to play. We know when we to go Villarreal, it will be an emotional atmosphere," Klopp said. "There are moments where we will suffer tomorrow.

"I know that already and that's what we have to be ready for. There's no need to be nervous, that's how it is. This advantage at home we have to use.

"Whichever result we will get, we will fight with it. It means everything to us to reach the Champions League final."

Mohamed Salah has set his sights on further Champions League and domestic success with Liverpool.

Jurgen Klopp's side face Villarreal in the first leg of their semi-final encounter on Wednesday, just under three years on from their last triumph in the tournament. The Champions League is one of three trophies that Liverpool are still in the hunt for this season, having already won the EFL Cup.

Salah helped Liverpool to victory in an all-English affair against Tottenham on that occasion in 2019, and says he wants to recapture those highs with a second European crown.

"I want to have the feeling again that we had after winning the Champions League," he told the club's matchday programme ahead of the game.

"It was unbelievable and in my mind that's why I want to win it again with Liverpool. The feeling we had in the city when we went on the bus and toured was unbelievable. 

"The Premier League was kind of different because it was not done [due to COVID-19 restrictions], but I want to win the Champions League again and I want to win the Premier League again. 

"That is my target with the team right now."

Salah has enjoyed another prolific campaign at Anfield, and is the leading scorer in the Premier League this season with 22 goals to his name, five ahead of his nearest rival Son Heung-min of Tottenham.

But the forward feels he has more to give than what he has delivered, adding: "I saw my game improving, but the season before last I had 19 goals and 10 assists in the Premier League.

"In my first season it was also 10 assists, so I'm always trying to score goals and give assists. 

"That is always my game and this season I feel a lot of improvement with the ball, but I go back to what I said before. The most important thing is to help this team win trophies and I am trying to help to do that."

Liverpool must do everything in their power to agree new contracts with Mohamed Salah and Sadio Mane.

That is the opinion of former Liverpool striker Durk Kuyt, who has urged his old club to seal the futures of two of their star attackers.

Mane joined Liverpool from Southampton in June 2016, the year before Salah traded Roma for Anfield.

Since Salah scored on his debut against Watford in the Premier League in August 2017, no player has netted more times in the competition than the forward, who has 117 goals in 176 league appearances for the Reds.

Meanwhile, Mane is joint-fourth on the list of Premier League goalscorers in that same timeframe, behind Harry Kane (100) and Jamie Vardy (86), alongside Raheem Sterling on 75.

The duo have been integral to Jurgen Klopp's success, which includes a Champions League and Premier League title. But both of their contracts expire at the end of next season.

Negotiations are ongoing with Salah, who wants Liverpool to break their wage structure to agree new terms, but Kuyt insists both players must be retained.

"Of course it's important to keep your best players and I'm sure Liverpool will do everything they can to get hold on of these players," Kuyt told Stats Perform.

"You're always looking to improve your squad but if you are Liverpool, you're also trying to keep the best players and for me Mane is definitely one of them.

"Just like I said, he's scoring goals, such important goals in an attacking role. [He is] very important for the team but also even last week I saw him you know defending, tackling, sprinting back and that's how Jurgen loves his players."

Mane netted the priceless second-half equaliser in a thrilling 2-2 draw against Premier League leaders Manchester City earlier in April to keep Liverpool's title and quadruple hopes alive.

However, the 30-year-old has been under added pressure since the January signing of Luis Diaz, with Mane forced into a more central role when Klopp prefers to play Salah and the Colombia international either side of him. That has not derailed his form, though.

"It's pretty amazing how Mane is managing these changes in the team because he started on the right when he was coming," former Netherlands international Kuyt added. 

"Then he went to the left and now Diaz is playing the games on the left and he's starting to play central and still doing great jobs.

"I think it's the togetherness of the five attacking players because we also have Jota and Firmino, they are very important for the team, that togetherness of scoring as many goals together but also defending very well together.

"I think this is the biggest strength of Liverpool and probably Liverpool has the best attack in the world."

Kuyt also praised Diaz for the speed in which he has settled in at Liverpool following his January transfer from Porto for an initial £37million (€43.9m).

"You can speak the language of football and when you speak that language it's pretty easy to understand. But I think I said before how important Diaz is for the team, and how special it is that he coped so well since his arrival," Kuyt said.

"He's been in a new country, a new culture, new team, new coach, so he has to learn the tactics of the team."

Dirk Kuyt believes Thiago Alcantara is the best midfielder in the world and has backed Liverpool to complete an unprecedented quadruple.

Thiago moved to Anfield from Bayern Munich for £20million (€23.8m) on a four-year deal in September 2020, but failed to live up to expectations during a first season at the club that was hampered by injuries and COVID-19.

Jurgen Klopp's side lost nine of the first 21 games in which the Spain international featured, including six home defeats in a row, while they were dumped out of the FA Cup and Champions League.

However, Thiago has come to the fore this season, with the Reds a point behind Premier League leaders Manchester City, through to the semi-finals of the Champions League and in the FA Cup final after already winning the EFL Cup.

The Merseyside club have won 14 of 15 top-flight games when Thiago has started this season, in comparison to 10 victories in 18 games without him in the line-up. They also score 2.9 goals on average when he is in the starting XI, as opposed to 2.3 without, and have conceded less (0.3 versus 1).

Thiago has kept Liverpool ticking with his magnificent range of passing, with no Reds player who has featured more than once in the league completing more passes (77.9) per 90 minutes or more in the opponents' half (46.9).

The former Bayern and Barcelona maestro's quality was again on show in the 2-0 win over Everton on Sunday as he made more successful passes (119) than Frank Lampard's entire side (95).

Former Liverpool forward Kuyt was quick to highlight the class of Thiago as he hailed the 31-year-old, but was unsure about the comparisons with Anfield hero Xabi Alonso.

"I think they are slightly different and I'm very happy for Thiago because in the beginning, he needed a bit of time, which is normal in life and in football is to just adapt to the system and to the team and to his new players," Kuyt told Stats Perform. 

"But he's playing such a great football and before he came he was one of the best midfielders in the world for me but now how he's playing on the level he's playing against top, top sides and performing week in week out.

"For me, he's the best midfielder out there at the minute."

Former Netherlands international Kuyt, who played 208 times for Liverpool between 2006 and 2012, also believes his former club have the credentials to win all four trophies.

"They've got the squad to do it. They've got the players and the manager to do it," he added.

"But it's just small details will decide whether they win the quadruple or maybe only the Premier League or the Champions League, but it will be amazing and very well deserved if Liverpool can achieve it all."

Klopp's team host Villarreal in the first leg of their Champions League semi-final tie on Wednesday.

Manchester City and Liverpool will put their epic Premier League title race on hold for a few days, as they have the small matter of the Champions League semi-finals to think about.

City are hoping to go one better than last year after losing in the final to Chelsea. Standing in their way in the last four are Real Madrid, who eliminated the holders in the quarter-finals and boast a striker in Karim Benzema who has 12 goals in nine Champions League appearances this season.

Also facing LaLiga opposition are Liverpool, though Villarreal are unlikely to be a team they expected to meet at this stage of the competition.

Led by a knockout football specialist in Unai Emery, Villarreal cannot be taken lightly by the Reds, even with Emery's men historically struggling in games in England.

Ahead of the first legs, Stats Perform digs into some of the best Opta numbers around the two semi-final ties.

Manchester City v Real Madrid

Madrid might just be beginning to feel it is their year after progressing from remarkable knockout ties against Paris Saint-Germain and Chelsea.

However, the omens are against them ahead of their first leg with City. Los Blancos haven't won on any of their previous three trips to face Manchester City in European competition (two draws, one defeat), with the most recent two coming in the knockout stages of the Champions League – a 0-0 draw in the 2015-16 semi-final first leg and a 2-1 loss in the 2019-20 last-16 second leg.

Pep Guardiola won't need any additional motivation as he looks to finally end his wait for a Champions League triumph with City, and the Barcelona legend can complete a historic hat-trick by overseeing an elimination of Madrid.

Indeed, Guardiola has eliminated Madrid from the knockout stages of the Champions League on two previous occasions, beating them 3-1 on aggregate in the 2010-11 semi-finals with Barcelona and 4-2 on aggregate in the 2019-20 last-16 with City. He is looking to become the first manager to eliminate Madrid from the competition on three occasions.

Madrid won away from home in the first leg at Chelsea in the quarter-finals, their only victory in their last six away games against English teams in the Champions League. No team has ever beaten two different English sides away from home in the knockout stages in a single Champions League campaign.

Champions League history between the two managers, however, is with Madrid's Carlo Ancelotti. He and Guardiola have faced each other six times, with the City boss claiming four wins to Ancelotti's two.

However, all four of Guardiola's wins came with City against Ancelotti's Everton, while the Italian saw his Madrid side beat Guardiola's Bayern Munich in both legs of the 2013-14 Champions League semi-finals, claiming a 5-0 aggregate triumph. Such a one-sided tie is unlikely this time around.

Liverpool v Villarreal

Villarreal are arguably the story of the 2021-22 Champions League, having sensationally knocked out Juventus and Bayern Munich to reach this stage.

However, games in England have historically been a problem for the Yellow Submarine. Since a 2-1 victory over Everton back in August 2005, Villarreal haven't managed to win any of their last eight away games in England in all competitions (three draws, five defeats), tasting defeat to Manchester United at Old Trafford in the group stages earlier this season.

Despite Villarreal's well-organised defensive set-up, a high-scoring game could well be in the offing. During his managerial career, Villarreal boss Emery has faced Liverpool five times (once with Sevilla and four times with Arsenal), with those matches producing 26 goals (5.2 per game on average), and both teams netting in each.

Liverpool will be the clear favourites to do the majority of that goalscoring. Of the 12 sides to have reached the semi-finals of the European Cup/Champions League on at least five occasions, only Benfica (seven wins from eight) and Milan (10/12) have a higher ratio of progressing to the final than Liverpool (82%), who have managed to reach the final on nine of their previous 11 semi-final appearances.

Although Liverpool possess serious depth in attack with Diogo Jota and Luis Diaz playing significant roles, Mohamed Salah is still the obvious candidate to be their talisman.

Only in 2017-18 (10) has Salah scored more Champions League goals in a single campaign than the eight he has scored this season, moving his tally for the club onto 33. The Egyptian is just three behind both Didier Drogba (Chelsea) and Sergio Aguero (Man City) for the most goals netted in the competition for an English side (both 36).

Yet Emery's track record in Europe should have Liverpool fans nervous that he could be the man to dash their quadruple dreams.

The only European meeting between Emery and Liverpool was the 2016 Europa League final, in which Emery's Sevilla side beat Klopp's Reds 3-1. On top of that, since the start of the 2009-10 season, the year of the inaugural UEFA Europa League campaign, Emery has progressed from 84 per cent of his Europa League/Champions League knockout ties (31/37).

That is second-best ratio of any manager to have taken charge of at least 10 ties, after only Zinedine Zidane (14/16 – 88%).