Will Smith has apologised to Serena and Venus Williams and their family, as well as Chris Rock, after his on-stage slap aimed at the comedian marred an Academy Award win.

The Williams sisters were at the Oscars in Los Angeles on Sunday to see Smith win Best Actor for his portrayal of their father Richard in the biopic King Richard.

However, before Smith took to the stage to collect his award, he was involved in the major flashpoint of the night and one of the most remarkable incidents in Academy Awards history.

Smith stormed the stage when Rock, while presenting Best Documentary Feature, made a joke about his wife Jada Pinkett Smith.

Rock appeared to make a comment on Pinkett Smith's hair, which prompted Smith – after originally smiling at the joke – to take to the stage and strike the comedian before telling him to "keep my wife's name out your f***ing mouth".

Smith returned to his seat and was allowed to remain in attendance for the rest of the ceremony, giving a lengthy and emotional acceptance speech in which he apologised to The Academy.

Almost 24 hours past before Smith took to his Instagram page to address the issue again, explaining he took offence to a remark apparently related to his wife's alopecia but also again apologising – including to the Williams family.

"Violence in all of its forms is poisonous and destructive," he wrote. "My behaviour at last night's Academy Awards was unacceptable and inexcusable.

"Jokes at my expense are a part of the job, but a joke about Jada's medical condition was too much for me to bear and I reacted emotionally.

"I would like to publicly apologise to you, Chris. I was out of line and I was wrong. I am embarrassed and my actions were not indicative of the man I want to be. There is no place for violence in a world of love and kindness.  

"I would also like to apologise to The Academy, the producers of the show, all the attendees and everyone watching around the world.

"I would like to apologise to the Williams family and my King Richard family. I deeply regret that my behaviour has stained what has been an otherwise gorgeous journey for all of us.

"I am a work in progress."

In her own post on Sunday, Serena Williams had seemingly sought only to address Smith's success at the Oscars.

"This night has been surreal," she wrote. "To spend it sitting next to my sisters meant more than anything.

"I am so grateful to The Academy for making this an unforgettable night, and to Will Smith for bringing this story to the big screen and honouring my family. This will always be a night to remember."

Manchester United's record goalscorer Wayne Rooney hopes Marcus Rashford can rediscover his form and break his Red Devils record.

Rooney, who is attempting to guide Derby County to safety in the Championship against the odds, scored 253 times during a hugely successful 13-year spell at Old Trafford, putting him four goals clear of Bobby Charlton as the most prolific forward in the club's history.

Rashford, who has hit 93 goals since making his United debut in 2016, has struggled throughout an underwhelming campaign, scoring just four times in 19 Premier League appearances.

The 24-year-old's dip in form saw him left out of Gareth Southgate's England squad for this month's friendlies against Switzerland and Ivory Coast, while speculation has mounted as to whether the forward might leave Old Trafford.

Rooney, however, holds out hope that Rashford can write himself into the United record books, calling upon him to turn his poor form around and put himself amongst the club's greatest marksmen.

"What I hope [happens] is that Marcus Rashford f****** gets his head out of his a*** and goes and breaks that record. He is a Manchester lad."

Rashford has been subjected to decreased playing time since Ralf Rangnick took over from Ole Gunnar Solskjaer, and all of his league goals this season have been netted as a substitute, the highest such tally managed by any Premier League player this campaign.

He is outperforming his expected goals (xG) of 2.9, however, suggesting that Rashford's finishing has been better than would be expected given the quality of chances to have come his way.

United, meanwhile, have lost two of their last three games in all competitions as they struggle to cement a place in next season's Champions League, having lost just one of the first 20 matches they played after Solksjaer's sacking in November. 

After scoring 11 points in the first quarter of the Los Angeles Lakers' 116-108 loss to the New Orleans Pelicans, LeBron James suffered an ankle injury early in the second term that he called "horrible".

James ended up staying in the game, and went on to score 39 points on 14-of-27 shooting, but he admitted after the game that it was more serious than he hoped.

After scoring 69 points in the first half, the Lakers were a different side after the break, scoring just 39 points over the final two quarters while the Pelicans scored 41 in the third quarter alone.

Speaking to post-game media, James said he would have "probably not" finished the game if he did not feel it was a crucial fixture for his side.

"I have no idea how I finished the game after watching the replay, it was pretty nasty," he said.

"I lost all explosiveness… a lot of my game was on the perimeter after that. It's horrible right now.

"From the time that I turned my ankle I felt a sharp pain run up my leg and get hot, and I've been there with ankle sprains before, but I didn't want to come out of the game.

"I understood how big of a game it was for us."

James was blunt when describing how it felt to come up short in a game that was built up as a near must-win internally.

"It feels like sh** – excuse my language, but that's what it feels like," he said.

"I came in with the mindset understanding that it was a playoff-type atmosphere with playoff implications.

"We also have a lot of guys in our ball club who haven't played in playoff games as well… [New Orleans] have guys who have been in the postseason.

"It feels like a wasted opportunity."

Also speaking with post-game media, head coach Frank Vogel preached urgency as the playoffs rapidly approach.

"Time's running out on us – we came out with the proper urgency for this game, but weren't able to close it," he said.

"It's over, this game is over, and we have to turn the page to the next one.

"It's not good – it hurts, this was a big game – but we have to regroup and find a way to beat Dallas and get some wins down the stretch here."

On James' injury, Vogel said it was a brave effort to stick it out until the end.

"It's tough – it has been that kind of season, and [James] was in an incredible groove when it happened," he said.

"Credit to him for toughing it out – you could see that he was limited on it somewhat the rest of the way, but he battled through it."

Canada boss John Herdman said his team are "only getting started" after they ended the country's 36-year wait to get back to the World Cup.

The head coach is an Englishman, but he has a tight bond with Canada having previously led the women's team with distinction.

It meant Herdman was full of emotion after a 4-0 win against Jamaica in Toronto on Sunday guaranteed Canada's place at Qatar 2022.

"I still can't believe it," he said. "I've been preaching this belief, but when it finally happens I'm speechless.

"Canadians... we've won Champions League finals, we've got a kid [Alphonso Davies] playing in Bayern Munich, and we've got Canadians playing at all levels in Europe, and we've got Canadians going to a World Cup.

"We're a football country, that's all we ever wanted. We wanted that respect. We wanted people to believe we were a football country, and we've proved it.

"We're coming, we're only getting started here. What a privilege it has been as a coach. I'm proud for all of these people here."

Les Rouges have been the standout team in the CONCACAF section, and a first World Cup appearance since Mexico 86 now awaits them.

Speaking on Sportsnet, midfielder Jonathan Osorio said: "It's a dream come true. We all dreamed of this as little kids and as a Canadian that was impossible.

"And today the impossible happened. It's an incredible feeling."

Defender Richie Laryea added: "It's crazy, it's a great feeling. These guys, everyone on this team worked so hard for this moment. To do it here in Toronto where a lot of the guys are from, it's f****** incredible."

Osorio is a Toronto FC stalwart, and Laryea, who plays in England at Nottingham Forest, said of him: "This guy's done a lot for this programme. He's led the way. It's special to see him do this for club and country. For him to have that moment, it's big for all of us but especially him and his family. Everyone here knows who he is, so it's great."

Erik Spoelstra said his mid-game spat with Jimmy Butler showed the passion within the Miami Heat ranks and their unwillingness to tolerate slumping performances.

Coach Spoelstra and six-time All-Star Butler, along with Udonis Haslem on the Heat bench, appeared to exchange fiery words and gestures during a timeout as the Heat struggled against the Golden State Warriors.

Golden State bolted to a 69-50 lead after scoring the first 19 points of the third quarter, and amid this slide came the dispute within the Heat ranks.

Spoelstra slammed a clipboard down onto the court and confronted Butler before others attempted to separate the pair.

Allowing himself to joke after the game, which saw the Heat roar back to establish an 84-81 lead before crumpling to a 118-104 defeat, Spoelstra explained the incident.

"Everybody was wondering where the dinner plans were tonight after the game," he said, before answering more seriously.

"It was pretty clear, we have a very competitive, gnarly group, and we were getting our a***s kicked, and it's two straight games we were not playing to the level we wanted to play.

"Every person in that huddle was pretty animated about our disappointment at how we were playing."

This game followed a 113-106 loss to the Philadelphia 76ers, and the Eastern Conference-leading Heat's record now stands at 47-26.

Asked about whether the public bickering could have a lasting impact, Spoelstra said: "It won't, we have bigger things to accomplish, but we do want to play better, and everything has to be better across the board.

"It starts with our leadership, our veteran players have to lead, and then we just have to play better, play better to our identity and that's really all the discussions were.

"I know how it can look from the outside, but that is more our language than playing without passion or without toughness, or without multiple efforts and lifelessness.

"Everything that happened in the hall from then on, as we cut that 19-point lead, that's way more to our personality."

Spoelstra even hinted the flash point could have a positive impact.

"You can use moments during a season to catapult you. You can galvanise together over frustration and disappointment," he said. "Teams can also go the other way. I don't see that with our group. But we have needed a kick in the butt from these two games.

"These two games were disappointing to everybody. You see a competitive group that is not playing to the level or the standards we want to play at.

"Let's give credit to Golden State. We played with great passion to get back into the game, but they executed well, and they made some big shots."

Louis van Gaal has spoken out for the first time against the World Cup in Qatar in his position as Netherlands coach.

The former Ajax and Manchester United manager is known for speaking his mind, and made clear the strength of his feelings about this year's prestigious competition.

During a news conference on Monday ahead of a friendly against Denmark, the 70-year-old called it "ridiculous" that the tournament will be held in Qatar in November.

"I am a member of a committee with [KNVB Secretary-General] Gijs de Jong. We meet and then I hear what has been agreed with other countries," he said. "Then I hear what we can do and I give my comments.

"I'm on it every month. I have already mentioned it in previous press conferences. I think it's ridiculous that the World Cup is there."

While Van Gaal's position on the World Cup in Qatar has been publicly known, he has not spoken on it since taking over as the Dutch national team coach last August.

"We are playing in a country that FIFA says they want to develop football there," he added. "That's bulls..t, but it doesn't matter. It's about money, about commercial interests. That matters in FIFA.

"Why do you think I'm not on a committee at FIFA or UEFA with my expertise? Because I have always opposed these kinds of organisations. I can say that in Qatar later but that won't help the world get rid of this problem."

The Oranje face Denmark in Amsterdam on Saturday, before also hosting Germany on Tuesday.

Kevin Stefanski is confident the Cleveland Browns have done their homework on Deshaun Watson after the quarterback's trade was confirmed on Sunday.

Watson agreed to waive his no-trade clause to allow the Houston Texans to deal him to the Browns.

The 26-year-old seemed to have narrowed down his options to join either the Atlanta Falcons or the New Orleans Saints, but is instead bound for Cleveland. Houston will receive a first-round pick for this year, 2023 and 2024, along with a third-round pick for 2023 and a fourth-round selection for 2024.

A bidding war for Watson materialised when he was not charged by a grand jury earlier this month, after it considered evidence of sexual assault and misconduct allegations against him.

Watson faces 22 civil lawsuits, but the grand jury did not find enough evidence for criminal proceedings. He has strenuously denied the accusations since they emerged last year, overshadowing his previous request to be traded away from the Texans.

According to NFL Network's Ian Rapoport, the Browns have agreed to give Watson a fully guaranteed five-year, $230million contract. That figure is $80m more than the previous record for fully guaranteed money at signing.

Browns head coach Stefanski believes Watson will be a shrewd acquisition.

Stefanski said: "Our organisation did a tremendous amount of background on DeShaun.

"We understand the concerns and questions that exist but are confident in the extensive work Andrew [Berry, executive vice-president of football operations and general manager] and his staff have done to feel confident about him joining our organisation.

"It was important for us to meet with Deshaun in person as part of our team's evaluation process, we had a candid conversation regarding his approach to coming into our organisation and community.

"I'm looking forward to the opportunity to coach Deshaun, he is ready to put in the hard work needed to help our team improve and make a positive impact in our community."

The 26-year-old Watson did not play a single game in 2021, having led the NFL in passing yards in 2020.

The Browns also confirmed on Sunday that Case Keenum has been traded to the Buffalo Bills for a 2022 seventh-round pick.

Watson's arrival will clear the way for the Browns to move former first-round pick Baker Mayfield, who has requested a trade.

Tokyo Olympics gold medalist Alexander Zverev has been issued a suspended eight-week ban and $25,000 fine by the ATP following his expulsion from last month's Mexico Open in Acapulco.

Zverev was withdrawn from the Acapulco event after an extraordinary outburst during a doubles match where he became angered at a call made the umpire, who overruled a decision from the line judge.

After losing the next point, which was match point, Zverev smashed his racquet against the umpire's chair three times. Zverev then shouted at the umpire that he had "destroyed the whole f****** match" before striking the chair again.

The ATP subsequently withdrew Zverev from the singles draw of the event due to unsportsmanlike conduct at the time and issued a statement on Monday after a review detailing the sanctions, including a suspended eight-week ban for aggravated behaviour.

"The review determined that Zverev committed Aggravated Behaviour under the Player Major Offense section of ATP Rules," the ATP statement said.

"As a result, Zverev has been issued an additional fine of US$25,000 and a suspension for a period of eight weeks from any ATP-sanctioned event.

"However, the fine and suspension are withheld on the condition that, over a probation period ending 22 February 2023 (one year from the incident), the player does not incur a further Code Violation that results in a fine for unsportsmanlike conduct… and verbal or physical abuse."

The German had been fined $40,000 at the time as well as forfeiting full event prize money of $31,570 and all ATP rankings points from the Mexico Open. He has since apologised for his actions.

Ben Stokes believes he let both himself and England down during the 4-0 Ashes defeat in Australia.

The all-rounder, who averaged only 23.60 with the bat and took four wickets, said Joe Root’s side have taken some "hard lessons" from the chastening defeat Down Under.

Stokes helped to salvage a draw with a half-century in both innings in the fourth Test at the Sydney Cricket Ground, but England suffered a brutal series hammering.

The vice-captain, who returned in Australia following a break to protect his mental health while also recovering from a finger injury, is determined to make amends in the upcoming series against West Indies.

"Looking back on Australia, we've had some honest reflections not only as a team but individuals as well," the 30-year-old said.

"I personally felt I let the team down with more than just performances, I would have liked to have been in better physical shape.

"When I look back on it, I felt I let myself down, but the thing that really grinds me the most and hurts me the most is that I let a lot of other people down and I never want to feel that way again. 

"Everyone's taken some good hard lessons from Australia."

England travelled to the Caribbean without legendary bowlers James Anderson and Stuart Broad, while head coach Chris Silverwood lost his job after the drubbing in Australia.

Stokes is fully behind captain Joe Root and says there is no point discussing the absence of Anderson and Broad.

"It's not all on the captain. Joe is 100 per cent the man to lead this team forward, and I'll be right behind him every step of the way,” he added.

"There's obviously been a big change with Stuart and Jimmy [being dropped,] but, with all due respect to them, they're not here and what we can concentrate on are the guys who are, and the opportunity they now have.

"We have made a real effort to make sure that from the top, the most experienced guy, Joe, to the guys who haven’t even played yet, we are valued just as much as each other. 

"When it comes to guys who are about to make their debut or haven't played much, there is that extra responsibility on the senior guys to help them through that.

"I don't see it as a negative whatsoever. The only thing for us now is [to be] positive, because there were a lot of negatives in Australia and it was a s*** place to be."

The first Test in the three-match series against West Indies start in Antigua on Tuesday.

Former Ukrainian tennis player Sergiy Stakhovsky is "pretty sure" he is on a Russian army target list after leaving his family to take up arms in defence of his country.

Stakhovsky, 36, recently returned to Kyiv to be part of the armed resistance following Russia's invasion of Ukraine.

The attack started last Thursday and it has continued since, with Ukrainian civilians subsequently arming themselves to fight for their country.

Stakhovsky has been especially active with media duties in the past few days, and as such he believes himself to be a marked man for speaking out against Vladimir Putin and Russia.

But the 36-year-old said he has been driven by a moral compass to fight the Russian forces despite having no formal military training.

He told Stats Perform: "You have to be scared. I mean, if you don't [get] scared then you're stupid, I guess. Then of course, you need to calculate all the circumstances and everything that could come out of it.

"I mean, I'm pretty sure that I'm on a nice list of the Russian army to, not be really – let's say – treated well. But it is what it is.

"Russia is a dictatorship state. If you show resistance, if you show that you don't agree with what they do, if you show that you don't want to have them here, they put you to the ground.

"They don't really argue with you. It's a state which is controlled by one man and the system is so rotten that it just eats up everybody who is not willing, who is actually expressing a different mind.

"So of course, it is scary, it is unpleasant. But... I can be scared in any part of the world. It's not going to change anything."

Stakhovsky, a father of three, felt he had an obligation to return to Kyiv to fight rather than stay with his family.

But he accepts there is only so much Ukrainians can do with the love, prayers and support of the world, urging politicians to do more without selling Ukraine out, convinced surrender will doom many more for speaking out.

"I wouldn't want any father to make that choice [to fight] or to make the decision anytime, anywhere in the world," he continued. "It's something that you don't really want to do. It's not, there's no right choice.

"In this case, I have three kids, which I have to raise, and I have to look after and I want to enjoy them finally, after finishing my career. And instead of that I'm here in Kyiv with a gun and trying to prove a point that Russia is doing the wrong thing.

"Yes, I'm morally right, 100 per cent and all of Ukraine is right. Russia is at fault, but the whole world just seems not to… well, the people of the world they care. They care and they send their appreciation, their love and their prayers and their support, but it's not going to do justice.

"The politicians are the main players in this whole area, and if they don't step up, if they don't save lives – because after all, the most important part in all of it in life is life itself – if they have a chance to save everything starting from tomorrow, they should.

"But they should not on terms that [mean] we give up [in] Ukraine and we save lives [by surrendering], because that's killing lives because then after they surrender Ukraine, the Russian machine will find every single individual who was in the resistance, who was willing to fight, and they will kill him, or put him in prison, they will poison him, they would kill him, it doesn't matter how, but they will find a way to get rid of these people.

"And we're talking about more hundreds and thousands of people. Russia these days is a Soviet Union of the Stalin era. It's a machine which is killing people."

Dillian Whyte labelled Anthony Joshua the number one "bull***t guy" in response to comments his rival made about his upcoming WBC heavyweight title fight against Tyson Fury.

Fury puts his belt on the line against Whyte at Wembley Stadium on April 23, while Joshua is slated for a rematch against Oleksandr Usyk, who holds the WBA Super, WBO and IBF straps.

Speaking to IFL TV, Joshua said he was rooting for long-time rival Whyte when he dons the gloves against Fury in a huge domestic showdown.

"It's a good opponent [for Fury], it's a good [title] defence against Dillian Whyte," Joshua said.

"Dillian Whyte needs to come in, look at what Tyson Fury does and reacts to, and do the complete opposite. Maybe work the body, and be conditioned to go the distance.

"I'm rooting for Dillian, even though I hate him, and I want to smash him one of these days. Go on Dillian, I'm with you all the way."

Replying on his Instagram story, Whyte seemed to be affronted by Joshua's declaration of hatred.

"Why so bitter. Number 1 bulls*** guy. @anthonyjoshua what did I ever do to you man," Whyte posted, before adding good luck to Joshua in the bout against Usyk.

In a seeming bid to defuse any simmering tensions, Joshua replied on his own Instagram story: "Hate is a strong word I respect you champ. I Just want to fight you at some point."

Joshua defeated Whyte with a seventh-round knockout when the two met back in December 2015.

Anthony Joshua revealed he will be rooting for Dillian Whyte against Tyson Fury despite expressing his hatred for him.

The all-British showdown between WBC champion Fury and mandatory challenger Whyte was finally confirmed for Wembley Stadium on April 23 after weeks of negotiations.

Joshua was expected to fight for the unified heavyweight titles against Oleksandr Usyk shortly after, but there are doubts over the bout with the Ukrainian reportedly returning home following the invasion by Russia.

The winner of the clash between Joshua and Usyk, whenever that is scheduled for, will likely be the next opponent for the victor of Fury's second world title defence.

But Joshua has made it clear who he wants to see come out on top as Whyte looks to an end Fury's unbeaten record.

"It's a good opponent [for Fury], it's a good [title] defence against Dillian Whyte," Joshua told iFL TV.

"Dillian Whyte needs to come in, look at what Tyson Fury does and reacts to, and do the complete opposite. Maybe work the body, and be conditioned to go the distance. 

"But I hope Dillian trains hard [and] doesn't underestimate Tyson. Because it's his first shot for Dillian, I think he'll be hungry, do you know what I mean?

"This ain't like his tenth time fighting for a title, you can have a little hiccup along the way. This is his first time fighting for the title.

"I'm rooting for Dillian, even though I hate him, and I want to smash him one of these days. Go on Dillian, I'm with you all the way."

Joshua, who defeated Whyte in December 2015, was due to face Fury last year before a court ruling ordered the final bout of a trilogy battle with Deontay Wilder.

Meanwhile, Joshua continues his preparations for a rematch with Usyk, despite the uncertainties surrounding the showdown due to Russia's invasion of Ukraine.

When asked whether he was concerned for Usyk, Joshua responded: "I've learnt sport and politics go hand in hand, and they're powerful voices, and it's good that they're speaking up.

"They're not pushing for war, they're saying 'let's find peace.' So good luck to them, and that's it really, before I go on and say something wrong."

Josh Taylor retained his world super-lightweight titles after a controversial split-decision victory over Jack Catterall who was "robbed" according to his trainer.

The judges determined that Taylor had triumphed 112-113, 114-11, 113-112, despite Catterall dominating the first five rounds.

Taylor was also knocked down in the eighth round by 28-year-old Catterall, who stormed out of Glasgow's OVO Hydro following the judges' decision.

Catterall’s trainer Jamie Moore, who spoke in the boxer's absence, said: “It’s difficult to put into words.

"You’re talking about a kid who has worked all his life for that moment, who waited three years for that opportunity. He then performs like that and beats the champion in his own backyard – and gets absolutely robbed."

Moore added: “You’ve asked Jack to come down here, as if Jack can come down and speak. He’s absolutely heartbroken.”

Catterall later tweeted: "What a load of s***!"

The victory improves 31-year-old Taylor's overall record to 19-0 and the Scot said there was no need for a re-match.

“I don’t think there’s any need for a rematch, I won the fight," Taylor said. "I won the fight by a couple of rounds, I won the fight in the second half when I took over and I bossed him.”

Taylor added: “100 per cent, I started a little slow but once I got into my rhythm and started getting him my timing and catching him with the bigger shots. He got me with a couple good shots, I’m not going to lie.

“It wasn’t my best performance, I put a lot of pressure on myself these couple of weeks with my homecoming, the first time in three year. I put a helluva pressure on myself with being the heavy favourite and it showed in the first half of the fight, but once I got my rhythm I started catching him with the bigger shots.

“It wasn’t my best performance but I believe I got the win, 100 per cent I got the win. But Jack did very well.”

Novak Djokovic has not lost any motivation for tennis, but believes he needs time to find some rhythm after a long break, as he conceded the world number one spot.

Djokovic's 86-week reign at the top of the ATP rankings will end on Monday, after the Serbian lost to qualifier Jiri Vesely 6-4 7-6 (7-4) in the Dubai Tennis Championships.

That means that Daniil Medvedev will leapfrog Djokovic regardless of whether or not he wins in Acapulco.

Using his official Twitter account, Djokovic congratulated both Vesely – who won his only previous meeting with the 20-time grand slam champion back in 2016 – and Medvedev.

"Well played @jiri_vesely, that was a great game. Wish you the best of luck for the rest of the tournament," Djokovic wrote, accompanying his post with a thumbs up emoji.

"Congratulations also to a very deserving @DaniilMedwed, who will now become world number one."

His appearance in Dubai was Djokovic's first competitive action of 2022, after he was unable to feature at the Australian Open due to his refusal to be vaccinated against COVID-19.

While suggesting he is still working his way back to full sharpness after not playing since December, Djokovic insisted he is fully motivated to carry on playing.

"My goal is to keep on playing tennis," Djokovic said in his post-match news conference.

"That's the ultimate goal. For as long as I really feel like it and as long as I can play. As long as my body allows me, as long as the circumstances in my life as well, the people that surround me [and] support me.

"I'm still motivated and I'm still p***** off when I lose a match. I care about it. I care about winning every match, as anybody else on the Tour, regardless of the age. I'm actually glad that I'm feeling a lot of emotions every single day because it means that I really want to be part of this sport, part of the Tour.

"Unfortunately, [it] wasn't my day. I congratulate Jiri. He played better. 

"The more matches I play, the more comfortable I get on the court. I need the match play. I didn't have many matches at all last few months.

"I don't look at the age really as a restricting factor for my career. I still feel great in terms of my body and the way it's holding on, the way it's recovering. It's been serving me well, so to say. That's something that obviously encourages me to keep going."

Novak Djokovic condemned the actions of Alexander Zverev, but expressed his support for the world number three after he was "withdrawn" from the Mexico Open for hitting the umpire's chair with his racquet.

Zverev was enraged during a doubles clash with partner Marcelo Melo against Lloyd Glasspool and Harri Heliovaara, after the umpire over-ruled a decision from the line judge.

That subsequently handed Glasspool and Heliovaara match point in the super tie-break, which was decided by an ace on the next serve.

Zverev quickly walked off and smashed his racquet against the umpire's chair three times, before shouting at the umpire that he had "destroyed the whole f****** match" and striking the chair again.

The German was then withdrawn by the ATP due to "unsportsmanlike conduct" ahead of a second-round singles meeting with Peter Gojowczyk.

The Olympic champion has apologised for his actions, explaining his regret at letting his fans, the tournament, and the sport that he loves down, and Djokovic believes Zverev will learn from his mistake.

"I saw the video, I saw Sascha's [Zverev] statement," Djokovic told reporters at a news conference after cruising into the quarter-finals of the Dubai Tennis Championships.

"I think he said it all in that statement. He realises that it was a mistake. I understand the frustration. Sometimes on the court, you feel in the heat of the battle lots of different emotions, different things happening in your head.

"I've made mistakes in the past where I've had tantrums on the court, so I understand what the player is going through. Of course, I do not justify his actions, but that statement has handled it in the right way. 

"He said he made a mistake and his actions were not appropriate. I think that the disqualification decision was not too harsh, I think it was correct under the circumstances. 

"Of course, it can be harsh for a player to get disqualified from a tournament. I know a year-and-a-half ago, I had something - I can't say similar - but I was disqualified from a grand slam after unintentionally hitting the line umpire.

"I realised that it was a mistake and I had to take it. Hopefully, he can reflect on that and not let something like that happen again in his life. I'm sure that he's going to approach it maturely."

Djokovic enjoyed a much calmer outing in Dubai, where he overcame Karen Khachanov in just 98 minutes 6-3 7-6 (7-2) to tee up a quarter-final tie against qualifier Jiri Vesely.

He was then keen to stress that Zverev is not the first player to produce a raging response when on the court, and insisted that the 24-year-old will recover from the outburst.

"I'm sure that the ATP management and officials will look at the video, will probably interview the chair umpire, will take some time to decide what they want to do," he added.

"I'm never going to encourage the ATP disqualifying or fining a player because I'm not in a position to do that, why would I do that? 

"Everyone is a human being, everyone is flawed and can make mistakes, but I wouldn't say that he was the only one that ever has done something like that. 

"There were many examples of players hitting their racquet in the umpire's chair. It happens. Bottles, bags were thrown, a lot of things, a lot of bad words. It's not the only case."