Luka Doncic accepted responsibility for a Dallas Mavericks defense this season that their Slovenian star believes "anybody can score on".

There was plenty of positivity coming into the season after a surprise run to the Western Conference Finals in 2022, but things have failed to go according to plan.

But while the Mavericks sit 11th in the West with a 37-42 record – one game behind the 38-41 Oklahoma City Thunder in the race for the final play-in tournament spot – they still own the sixth-best offense in the league this season.

Scoring at a rate of 116.0 points per 100 possessions, the Mavericks trail only the New York Knicks (116.8), Denver Nuggets (117.1), Philadelphia 76ers (117.1), Boston Celtics (117.3) and Sacramento Kings (119.0) for the league's best offensive units.

But they also sit 23rd in defense, giving up 115.9 points per 100 possessions, although their stellar offensive play had been enough to keep their head above water prior to the All-Star break.

Since the break – and the trade for Kyrie Irving, where they sent away key rotation pieces Dorian Finney-Smith and Spencer Dinwiddie – the Mavs have gone 6-13, and while their offense has actually gotten even more efficient (117.5 points per 100 possessions), their defense has cratered even further (118.0).

Doncic called it "a very disappointing season", and pointed to the current group's lack of chemistry – particularly on the defensive end – as one of the main reasons for their late-season collapse.

"I think you don't see that chemistry we had before – I mean, especially last year," he said. "I think that chemistry was at the top, everybody. But chemistry builds not just not right away. It's a long process.

"I don't think the offense is a problem, and I always said this. It's our defensive end. I think anybody can score on us. Whoever it is, anybody can score on us."

But the former Rookie of the Year and three-time All-NBA First Team selection was not looking to point fingers. Doncic highlighted his own packed schedule over the past three years as he spent his offseasons playing for Slovenia internationally, and admitted his defense has reflected his level of fatigue.

"I've been playing basketball for three straight years," he said. "Four weeks in between it was free. 

"Sometimes it's really hard for me to play really hard on both ends. But obviously, the defensive end I gotta be way better. But that's not an excuse.

"I'm still young, age-wise, but it's a lot of basketball. But I've got to be way better. I'm the leader of this team – the one to blame is me."

Chelsea, Liverpool and the Premier League have all condemned the "vile" chants referring to stadium tragedies heard during the teams' goalless draw at Stamford Bridge on Tuesday.

Chelsea and Liverpool played out their fourth goalless draw in as many head-to-head meetings as the Blues spurned several chances to win their first game since Graham Potter's sacking.

The contest was marred by some home supporters chanting about the Hillsborough disaster – which saw 97 Liverpool fans lose their lives during and after a 1989 FA Cup semi-final.

Tuesday's match was not the first to be overshadowed by such songs this season, with Manchester City expressing regret after similar chants were heard at their 4-1 win over Liverpool on Saturday.

A statement released by Chelsea shortly after full-time read: "Chelsea FC condemns the inappropriate chants heard from some home fans during this evening's game. 

"Hateful chanting has no place in football and we apologise to anyone who has been offended by them."

Liverpool subsequently responded to Chelsea's apology on Twitter, calling for supporters to stop partaking in the grim chants.

"We know the impact these vile chants have on those who continue to suffer as a result of football tragedies," read a Tweet from the club's account. "For their sake, this has to stop."

The Premier League, meanwhile, addressed the situation in another Tweet, which read: "The Premier League condemns the tragedy chanting heard at tonight's match between Chelsea and Liverpool. 

"We continue to treat this as an unacceptable issue and are seeking to address it as a priority."

Erik ten Hag knows Manchester United's players are only human, but feels he must demand they "act as robots" in order to deliver results.

United slipped to a lacklustre 2-0 defeat in their return to Premier League action on Sunday against top-four rivals Newcastle United.

Though they have impressed in the FA Cup and Europa League, just one point from their last three top-flight games has left them fifth in the table.

Ten Hag, however, has no doubt his squad can rediscover their best.

"I agree we return to old habits, but I also know there are fluctuations," he told The Guardian. "[Players] are not robots. But we have to act as robots, as machines.

"We have to expect and demand of our players that they match the standards so when we are not doing [that] we are disappointed because that is our job.

"We have shown in so many games that [we can do that]. It was a tough, very strong belief, [with] confidence and passion and togetherness.

"We have, and have shown it in many games. We have shown we can win the games, but you have to do it in every game because that is the demand of Manchester United."

United can push themselves back into the Champions League qualification places with a win over Brentford on Wednesday, having games in hand on fourth-place Tottenham.

Ten Hag will also have one eye on next week's return to Europa League action, with the club set to host Sevilla a week on Thursday in the first leg of their quarter-final clash.

Chelsea's interim head coach Bruno Saltor hailed his players' response to a difficult few days after the Blues enjoyed the better of the play in Tuesday's goalless draw with Liverpool.

Chelsea missed several clear chances to win their first game since Graham Potter's sacking, with Kai Havertz denied a second-half winner by a VAR review after a shot rebounded into the net via his arm.

The result keeps the Blues in the bottom half of the Premier League table, but there was cause for optimism after a game in which Liverpool managed just two shots from inside the Blues' area.

Speaking after the draw, former Brighton and Hove Albion full-back Bruno outlined his pride in Chelsea's performance, despite them failing to net in a sixth different home league game this season.

"I asked the players to play with their hearts and I think we saw that," the Spaniard told Sky Sports. "We gave everything, we created chances. We scored twice, one offside and one handball.

"I think it was a big performance from the boys, it's a good start for them after some difficult, emotional days.

"They were able to keep themselves focused, to use their heads and their hearts as well, so credit to them.

"It's been a really difficult season for them. To come back from the news we had in the last few days is incredible. 

"It shows they are able to focus on the moment and on performing well. They have to be proud of themselves."

One major positive for Chelsea came in the form of N'Golo Kante, who gave an energetic performance as he captained the side on his first league start since last August.

Kante won five of his seven duels and was successful with all three of his attempted tackles, but Bruno believes being able to lean on his experience is equally crucial for Chelsea.

"He's outstanding," Bruno said of Kante. "Both with what he brings to the team in terms of football, and what he brings in terms of leadership. He's a massive plus for the team."

With the appointment of Potter's long-term successor not believed to be imminent, Bruno was asked if he expects to be in place for Saturday's trip to Wolves, but the 42-year-old is taking things day by day. 

"I expect to go home now and rest, then go game by game," he said. "That's what we are trying to do, trying to be as professional as we can, help the club and present the best that we can.

"It's a difficult situation, but I think everyone is doing the best they can. We just need to relax, be calm and assess the boys. I know it sounds boring, but it's a day by day job.

"The only thing I can say is I'm happy for the first performance, but it's what they [the players] deserve. It's credit to them, it's not credit to me."

Simone Inzaghi defended the "misunderstood" Romelu Lukaku celebrations after the Inter striker sparked late carnage at Juventus on Tuesday.

Loanee forward Lukaku restored parity with a 95th-minute penalty at Allianz Stadium, leaving Inter on level terms after a 1-1 Coppa Italia semi-final first-leg draw.

The Belgium international celebrated in front of Juve's Curva Nord, immediately prompting a confrontation with Juan Cuadrado that saw Lukaku receive his marching orders for a second yellow card.

Cuadrado, who scored the 83rd-minute opener, was then dismissed for a clash with Inter captain Samir Handanovic after the full-time whistle as tempers continued to boil over in Turin.

Inzaghi insisted Lukaku's reaction was understandable, though, as the Inter coach bemoaned losing his key forward and goalkeeper Handanovic to suspension.

Asked whether Lukaku's celebration was towards the crowd, Inzaghi told Mediaset: "Yes. This was clear, but it goes beyond this.

"I see a player who scores, celebrates, and everything happens there. Lukaku's celebration was misunderstood.

"It certainly wasn't a nice sight to see in a well-conducted and fair match until the 94th minute.

"[But] now I have to be clear-headed and think that for the return semi-final. Lukaku's celebration will deprive me of him and Handanovic."

Juve goalkeeper Mattia Perin was left far from impressed by what he deemed to be a disrespectful act by Lukaku, who appeared to shush a section of Bianconeri supporters behind the goal.

"We have to be the first to set an example, but in these games it's difficult to hold back," Perin told Sky Sport Italia.

"It's a lack of respect to celebrate under the Curva of the opposing team."

A hard-fought draw somewhat halted Inter's slide, having headed to Juve on the back of three straight Serie A defeats that have left the Nerazzurri's top-four place in doubt.

Inter are level on points with fifth-placed Roma and just six clear of Juve despite their 15-point deduction, but Inzaghi is buoyed by the support of the Nerazzurri faithful.

He said: "Our supporters are unique and incomparable. We lost a home game on Saturday, and up to the end, the Curva never left us.

"We are Inter, it's normal to expect different results. There was a call for everyone that we expect more and better. Tonight was a great response from players to the whole environment."

Thomas Tuchel accepted responsibility for Bayern Munich's DFB-Pokal quarter-final exit, after they suffered a late 2-1 loss against Freiburg.

The Bundesliga leaders looked set for extra-time at Allianz Arena, after Dayot Upamecano's header was cancelled out by Nicolas Hofler.

But Jamal Muisala's penalty concession deep into second-half stoppage time allowed Lucas Holer to seal a last-gasp victory for the visitors from the spot.

In only his second game in charge since replacing Julian Nagelsmann, Tuchel acknowledged he had to shoulder the blame for their defeat.

"I am not really angry," he said. "We conceded two goals with two shots. I can’t remember another chance from Freiburg.

"The last pass, [and the] precision obviously, are all an issue. But still, we had good moments we could have used, but [we] just could not keep it up.

"In the end, it is our fault. We are very disappointed [to lose] a quarter-final at home. Of course, I am responsible."

Tuchel made a winning start to his Bayern career with a decisive 4-2 win over old club Borussia Dortmund, where he previously won the DFB-Pokal.

His failure to back it up with progress to the semi-finals of Germany's major knockout competition will take the shine off his early impression.

Bayern can claim immediate revenge on Saturday when they travel to Freiburg for a reverse fixture in the Bundesliga, looking to consolidate top spot.

They also remain in the mix for Champions League honours, and return to European competition against Manchester City next Tuesday.

Jurgen Klopp admitted he would not last at Liverpool if he oversaw multiple seasons as poor as their current campaign after the Reds played out a goalless draw with managerless Chelsea.

A much-changed Liverpool side were fortunate to escape with a point from their trip to Stamford Bridge, with a VAR review denying Kai Havertz a winning goal when the ball deflected in off his arm.

Klopp made six changes to his starting line-up for the game, with the Reds producing a disjointed display after benching the likes of Mohamed Salah and Trent Alexander-Arnold.

Having gone four games without a win across all competitions, Liverpool sit seven points adrift of the Premier League's top four with 10 games remaining this term.

Asked whether he had ever endured another season as frustrating as this one, Klopp told BBC Sport: "No, thank God. 

"I wouldn't be manager of Liverpool if I had a couple of these seasons. We have to get through it. That's how life is. You have to fight to change your fortunes.

"We cannot talk about the goals we have if we don't get points. We don't give up, we will fight. We can talk a lot, but we have to show it."

Liverpool have now seen each of their last four meetings with Chelsea across all competitions finish goalless, despite those games containing a total of 103 shots worth 11.9 expected goals.

However, following Saturday's heavy 4-1 defeat at Manchester City, Klopp was at least pleased by the spirit shown by his out-of-form side in west London.

"Both teams played last year in two finals, two of the best 0-0s I ever saw," Klopp added. "Today it was two teams low on confidence but really fighting. 

"We're fine with a point, there was a lot of good stuff. We showed a lot of fight. We have to keep going.

"We had our opportunities up front. It was not spectacular. It was a step. That's what we have to do – make steps. Sometimes smaller steps.

"We need to have these chances. You need to keep having chances. I'm not disappointed about that. They scored twice, but both goals were disallowed.

"I didn't expect a team with six changes to play the best game of the season. The boys who came in used their opportunity and showed they were ready."

Pablo Ibanez's gorgeous extra-time volley stunned Athletic Bilbao as Osasuna sealed their spot in the Copa del Rey final with a 1-1 draw at San Mames that secured a 2-1 aggregate win.

Jagoba Arrasate's men only held a slender 1-0 lead from last month's first leg in Pamplona, and for much of the match that looked unlikely to be enough.

Athletic deservedly levelled the aggregate score just after the half-hour, with Inaki Williams diverting Mikel Vesga's flick-on home from close range.

The Ghana international's younger brother Nico Williams seemed destined to put Athletic ahead in the tie during the second half, but the Spain winger wasted two glorious opportunities.

Athletic's profligacy coupled with Sergio Herrera's excellence between the posts ensured the game was extended by another 30 minutes.

Osasuna capitalised with just four minutes of extra time left, and in spectacular fashion, as Jon Moncayola's cross to the edge of the box was met by an exceptional controlled volley from Ibanez that left Julen Agirrezabala helpless.

Los Rojillos will face either Barcelona or Real Madrid – whose second leg is on Wednesday – in what will be just Osasuna's second Copa del Rey final ever.

Dominic Thiem claimed his first win since February with victory at the Estoril Open.

The former US Open champion and two-time Roland Garros finalist had gone his previous four ATP Tour-level events without a win.

But Thiem, once ranked as high as third in the world, ended the drought with a 3-6 6-3 6-4 defeat of compatriot Sebastian Ofner.

He will next face American Ben Shelton, who defeated Constant Lestienne 7-5 7-5.

Meanwhile, there were three shocks at the Grand Prix Hassan II in Marrakesh.

Roberto Carballes Baena came from a set down to beat fifth seed Maxime Cressy, Alexandre Muller overcame sixth seed Richard Gasquet, and qualifier Andrea Vavassori defeated eighth seed Nicolas Jarry.

Massimiliano Allegri was left to rue an "avoidable situation" as Romelu Lukaku's last-gasp leveller for Inter left Juventus "very angry" on Tuesday.

Lukaku equalised with a 95th-minute penalty at Allianz Stadium to cancel out Juan Cuadrado's 83rd-minute opener in the Coppa Italia semi-final first leg.

Chaotic scenes followed as Lukaku was dismissed for his celebrations after restoring parity, while Cuadrado and Inter captain Samir Handanovic received their marching orders for a clash after full-time.

While Allegri suggested he missed the carnage unfolding after the full-time whistle, the Juve coach called on the Bianconeri players to regroup after an avoidable late goal for Simone Inzaghi's visitors.

He told Mediaset: "I don't know anything because the match was over and I went in. I know there were some dismissals.

"It's a pity because the game was over and we needed to be quicker on the first ball that came out.

"[Filip] Kostic could have been a little smarter but the match was balanced and the result was fair. We're sorry because with 20 seconds to go it was an avoidable situation.

"I saw the boys very angry about this draw but we have to be good at accepting it."

Juve will head to San Siro on April 26 with the last-four clash finely poised, though Allegri's side must focus on a crucial run-in this month before then.

The Bianconeri visit Lazio in Serie A on Sunday, trailing the top four by just six points despite their 15-point deduction following an investigation into previous transfer dealings.

A two-legged Europa League quarter-final against Sporting CP follows either side of a league meeting with Sassuolo, before Juve host Serie A leaders Napoli ahead of the return Coppa Italia meeting with Inter.

Asked in a press conference whether Lukaku's late leveller will hit harder due to Inter holding the advantage on away goals, Allegri responded: "We have that match in a month, now we have important commitments. 

"We have three league games before the return plus Sporting. We'll think about the Coppa Italia later. 

"It will be a tight match where we will need to win, but now we need to focus on the championship."

Romelu Lukaku scored a last-gasp penalty before being sent off as Inter snatched a 1-1 draw at Juventus in a fiery Coppa Italia semi-final first leg on Tuesday.

Loan forward Lukaku restored parity for Inter deep into stoppage time at Allianz Stadium after Bremer was adjudged to have handled inside his area, before the goalscorer was dismissed for an altercation with Juan Cuadrado.

Cuadrado, who earlier thought he had won the game with his 83rd-minute strike, also saw red after the final whistle along with Inter captain Samir Handanovic following a clash between the pair.

The manic conclusion leaves the tie delicately poised as Inter return home on April 26 looking to reach the final and exact revenge for being on the wrong end of a Derby d'Italia double in Serie A this season.

Chelsea endured a frustrating start to the post-Graham Potter era as they shared a 0-0 Premier League draw with Liverpool, a VAR check denying Kai Havertz a winner at Stamford Bridge.

Interim Blues boss Bruno Saltor saw his team create plenty of chances against a much-changed Reds side after Jurgen Klopp omitted Mohamed Salah, Trent Alexander-Arnold and other key players from his starting XI. 

However, Chelsea's familiar attacking woes were on full display as Havertz saw a potentially decisive strike ruled out for handball to cap a wasteful performance.

While the result keeps Chelsea inside the bottom half, Liverpool failed to make up ground on their rivals for a top-four finish as their winless run was extended to four games across all competitions. 

Chelsea started brightly as Mateo Kovacic forced Ibrahima Konate into a sliding goal-line clearance, before Alisson smothered Havertz's close-range flick following good work from Ben Chilwell.

Reece James thought he had volleyed Chelsea ahead after 24 minutes, but an offside call against Enzo Fernandez in the build-up saw his powerful finish chalked off.

Having offered virtually nothing as an attacking force, Liverpool almost snatched the lead on the stroke of half-time, Wesley Fofana crucially deflecting Fabinho's volley around the post.

Kovacic fired over from a glaring one-on-one chance after the interval, before Havertz was denied the opener by a VAR review when the German's tame finish bounced back off Alisson and found the net via his arm.

Joao Felix sent a wild volley over as Chelsea continued to create the clearest opportunities late on, with even the introduction of Salah failing to inspire out-of-form Liverpool.

Lucas Holer's last-gasp penalty saw Freiburg snatch a dramatic 2-1 victory against Bayern Munich in the DFB-Pokal quarter-finals to end Thomas Tuchel's hopes of a domestic double.

The tie appeared to be headed to extra time, until Jamal Musiala handled Nicolas Hofler's strike, enabling Holer to secure a shock win.

Bayern had looked the likelier of the two teams to claim a late winner, after seeing Dayot Upamecano's first-half header cancelled out by Hofler's excellent volley.

It means Tuchel, in his second game since replacing Julian Nagelsmann, will miss out of the chance of both Bundesliga and Pokal glory as Christian Streich's side proceed to the last four.