Andy Murray believes Carlos Alcaraz can be a dominant figure in tennis "for as long as he wants" but cautioned against expecting him to challenge the grand slam records of the Big Three.

Roger Federer's haul of 20 slam titles has been overtaken by Rafael Nadal and Novak Djokovic, who both have 22 majors, but those three are streets ahead of every other men's singles player in history.

Next on the list is Pete Sampras with 14 slams, which was itself a total that many once fancied would not be beaten for decades.

Murray was for a time part of a Big Four, until he got left behind by the relentless winning of his three great rivals. Federer has retired, but Djokovic and Nadal may yet have more slam titles in them.

At the age of 19, Alcaraz is already off the mark, winning the US Open last year, and he has jumped back to world number one after winning the Indian Wells Open on Sunday.

Djokovic and Nadal will be big threats to Alcaraz's hopes of triumphing at the French Open, but the young Spaniard is no longer simply the coming player on the ATP. He has arrived, and Murray is convinced Alcaraz is the real deal and poised to stay at the top of the sport for years to come.

"He has an excellent game, an all-around game that I think will translate well onto all surfaces," Murray said.

"He's not the biggest guy, but he can serve big. He's an unbelievable mover, great athlete. Has a lot of variety in his game. Takes the ball on a lot. That's something that you hope that he keeps.

"I know from experience that it's a bit easier playing that way when you're sort of 18, 19, and there's not any scar tissue there. I hope that he maintains that style of play because it's exciting to watch."

The prediction that Alcaraz can be an all-court player, and therefore succeed on grass as well as the hard and clay courts where he has already found success, bodes well for his prospects of stacking up slams.

Murray might have faced Alcaraz in round three at the Miami Open this fortnight, but the veteran Briton, a three-time slam winner and former number one, lost his opener on Wednesday to Serbian Dusan Lajovic.

There have only been two matches on tour between Alcaraz and Murray to date, both coming in the 2021 season when they won one each.

Alcaraz is the defending champion in Miami, and a clear favourite after crushing Daniil Medvedev in the Indian Wells title match. He brings a 14-1 record for the year into the tournament.

"He's obviously so far in his young career doing better than most of the guys that have come in the last eight to 10 years," Murray said.

"I know a lot of people are expecting everyone to win 20-plus grand slams now, like that's sort of normal. I wouldn't predict that for anyone.

"I would imagine he would be right at the top of the game for, well, as long as he wants to play."

Anthony Joshua will not "sit around and wait" to enter discussions with Tyson Fury after the latter's proposed bout with Oleksandr Usyk fell through.

Usyk's camp confirmed on Wednesday that talks with Fury over a heavyweight unification bout at Wembley on April 29 had collapsed.

Fury's promoter Eddie Hearn later revealed he is hoping to revive negotiations with Joshua over an all-British showdown later this year.

But having failed to agree terms on a fight twice before, most recently at the end of last year, Joshua is not interested in more drawn-out discussions.

"I was supposed to fight him before I fought Usyk, the first time, and he pulled out due to his legal case, the arbitration, with [Deontay] Wilder," Joshua said. 

"Then we had the one for this December [when talks also broke down]. Will the fight with me and him get made? I don't know. 

"Look at all the s*** they are going through now with this Usyk stuff. It's just crazy. I don't publicise things, so it's actually good that people are starting to see what goes on.

"It's good that people can actually see the s*** that people have got to put up with to make a fight. But Me and Usyk got two successful fights done."

Joshua added: "I cannot say I am just going to sit around and wait for this geezer [Fury]. There are other great fights out there I can have. 

"Without Fury on my record I will not wake up tomorrow and regret my whole boxing career. If he is on it, I am on it, if he is not, he is not. Whatever."

Joshua is scheduled to meet Jermaine Franklin in London on April 1 as he looks to respond to back-to-back losses to Usyk.

Steve Kerr was amused by the flashpoint in the Golden State Warriors' 127-125 win over the Dallas Mavericks that had their opponents plotting a protest.

Mavericks owner Mark Cuban complained of the "worst officiating non-call mistake possibly in the history of the NBA", but Warriors coach Kerr was confident there was nothing amiss.

The Mavericks took a timeout late in the third quarter and believed they had possession of the ball, asserting they were told as much by the game officials.

What transpired was a referee call that led to Warriors center Kevon Looney scoring an uncontested dunk from a Jordan Poole inbound pass to make it 90-87 with 1:56 left in the third.

The Dallas players were not in position, leading to protests from Cuban and coach Jason Kidd, but the dunk stood.

Kerr teasingly said it was his season's standout ATO – after timeout.

"Number one, it was my best ATO of the year. It worked brilliantly, just the way we got organised and confused them," he said.

More seriously, he added: "I had to stop. When I saw them at the other end, I had to stop and think, 'Isn't this our basket?', because I had drawn up a play for an out-of-bounds [play] underneath, a baseline out-of-bounds.

"When they were down at the other end I had to stop and think, 'Is this right?'.

"I don't know what happened. You'd have to ask their side. I thought it was pretty clear that it was our ball and that's why I was drawing up a play out-of-bounds on the baseline.

"But they all lined up at the other end. I guess they assumed it was their ball."

Looney, who benefitted from the confusion, said: "I didn't know what was going on. I'm just glad JP passed to me because I needed that to get to my double-double."

Karl-Anthony Towns marked his return to action with a Hollywood ending as a pair of last-gasp free throws handed the Minnesota Timberwolves a 125-124 win against the Atlanta Hawks.

With 3.6 seconds left on the clock, Towns had ice in his veins as he made both his shots to put Minnesota decisively ahead.

There was still time left for Atlanta's Saddiq Ben to be impeded by Taurean Prince, but a foul was not given, with a game official reportedly later saying that was an error.

That could have seen Towns denied his returning glory, having featured for the first time since November 28.

Sidelined by a calf strain for almost four months, the first pick in the 2015 NBA Draft scored 22 points in his comeback game on 8-of-18 shooting.

"This is what movies is made of," Towns said in an on-court interview with Bally Sports. "Four months away, two free throws, don't worry about it, I got that!"

In a later press conference, the 27-year-old thanked coach Chris Finch for backing him.

Towns was the player fouled to set up the game-winning chance, trusting himself to get the job done.

"I was smiling a lot just in my mind," Towns said. "On the court I probably didn't show it, but even before I got the ball with seven seconds left I was smiling.

"I just had a good feeling that the game was going to go the way I wanted it to, so the play was immediately drawn up for me.

"Finch looked at me with everyone around and said, 'You're going to get the ball, and it's yours to take home'.

"So shout out to Finch having that confidence in me after 51 games [out of action] and all the things I've had to deal with."

Towns added: "When I went up there for two free throws I looked back and he was telling people, 'He ain't missing, I'm telling you that right now', and I just knew in my bones I wasn't going to miss.

"I've worked too hard on my game. I've been in those moments too many times.

"I got told I didn't have one fast heartbeat at all. I felt pretty confident, I felt pretty calm. I feel like I had that Jaden McDaniels demeanour up there, and I was just going up and making those shots."

Philadelphia 76ers head coach Doc Rovers has no long-term injury concerns over James Harden and Joel Embiid, despite the latter sitting out the second half of Wednesday's 116-91 win over the Chicago Bulls.

Harden missed the game due to Achilles soreness, while MVP candidate Embiid played a season-low 16 minutes, scoring 12 points with seven rebounds and seven assists.

The 76ers were up 76-48 at half-time, completing a routine win, with Rivers stating Embiid's early exit was out of caution from a minor calf issue.

"We've gone in the playoffs two years in a row with injuries and we all know you don't win in the playoffs when your key guys aren't healthy," Rivers told reporters. "So we're going to do whatever we can to be healthy."

Rivers indicated he expected both Harden and Embiid to be available for Friday's game against the Golden State Warriors.

Embiid's half-time exit meant he snapped his 10-game streak of 30-point games, which was a franchise record.

The 76ers center said he initially injured his calf during Monday's 109-105 overtime loss to the Bulls and opted to take the cautious route when he felt some discomfort on Wednesday.

"We've already clinched the playoffs, it's all about making sure we're going to be healthy for them," Embiid said. "If it feels good, of course I want to play, but if it's not right, then we gone figure it out."

Harden had struggled in Monday's loss, shooting two-of-14 in 46 minutes for five points. Rivers said Harden felt some foot discomfort during that game, leading to the decision to rest him on Wednesday.

"No concerns," Rivers said. "It just flared up a couple times and we decided instead of doing the back-and-forth, the dance, let's just sit him down, get him rest and make sure he's right."

The 76ers are third in the Eastern Conference with a 49-23 record, battling it out with the second-placed Boston Celtics (50-23) for the second seed. The two rivals are due to meet in a crunch clash on April 4.

The Golden State Warriors claimed rare back-to-back wins with Wednesday's 127-125 victory at the Dallas Mavericks but the game was marred by controversy after Kevon Looney's third-quarter uncontested dunk.

Stephen Curry scored 20 points with 13 assists as the reigning NBA champions secured consecutive wins on a road trip for the first time this season at American Airlines Center.

But the Mavs were left raging after Looney's uncontested dunk with 1:54 left in the third quarter from a Warriors inbound after a timeout, which Dallas had thought was their ball, meaning they subsequently lined up on the other half of the court.

Mavs owner Mark Cuban said they would contest the result of the game due to the incident which he labelled the "worst officiating non call mistake possibly in the history of the NBA" on Twitter.

Despite that, the Mavs could have won the game on merit, with Luka Doncic missing a two-point attempt under pressure from Draymond Green with 3.2 seconds left at 125-122.

That came after Curry's bounce-pass set up Green's three-point play, before the reigning NBA Finals MVP glided in for a two-point shot to open up the three-point buffer with 8.1 seconds to play.

Doncic, in his return after missing five games with a thigh injury, scored 30 points with seven rebounds and 17 assists. Doncic shot 11-of-27 from the field and six-of-10 from the stripe.

In Kyrie Irving's absence, 20-year-old guard Jaden Hardy was outstanding with six three-pointers in his 27 points.

The win is a major boost for Golden State's playoff hopes, moving to sixth in the West with a 38-36 record, while the Mavs drop to ninth with a 36-37 record, having lost five of their past seven games.

It was Golden State's first road win when trailing after the first quarter, having entered the game with a 0-20 record.

Morant and KAT make successful returns

Ja Morant made his successful return for the Memphis Grizzlies off the bench for the first time in his career as they won their fourth straight game, beating the Houston Rockets 130-125.

Morant returned after his NBA-imposed eight-game suspension with 17 points and five assists, receiving a standing ovation from the home fans upon his injection into the game.

Jaren Jackson Jr scored a season-high 37 points with 10 rebounds and Desmond Bane added 20 points as the Grizzlies clinched the Southwest division.

It was a night of returns as Karl-Anthony Towns was back for the first time since November due to a calf strain, scoring two game-winning free-throws with 3.6 seconds left as the Minnesota Timberwolves won 125-124 over the Atlanta Hawks.

Lakers stay right in playoff hunt

The Los Angeles Lakers ensured they remained firmly in the congested race for Western Conference playoff and play-in tournament spots with a 122-111 victory over the Phoenix Suns.

Anthony Davis scored a team-high 27 points including 20 in the second half, with nine rebounds, while Austin Reaves backed up Sunday's 35-point game with 25 points and a career-high 11 assists.

Devin Booker scored 33 points on 11-of-16 field shooting with six rebounds but seven turnovers for the Suns, who remain fourth in the West but with a 38-34 record.

The Lakers move up to 10th, just behind the Mavs in ninth, with a 36-37 record and LeBron James not far from a return from injury.

The Dallas Mavericks will protest Wednesday's 127-125 loss to the Golden State Warriors after the "worst officiating non call mistake possibly in the history of the NBA" according to owner Mark Cuban.

The protest centers around a referee call which led to Warriors center Kevon Looney scoring an uncontested dunk to make it 90-87 from a Jordan Poole inbound pass with 1:54 left in the third quarter following a Mavericks timeout.

Dallas believed that they had possession of the ball, thus were not in position for the inbound, with Cuban claiming that was due to a miscommunication by the referees.

"For those wondering about the play with 1:54 to go on the 3rd, let me explain what happened," Cuban tweeted.

"The ref called Mavs ball. The announcer announced it. Then there was a timeout. During the time out the official changed the call and never told us. Then when they saw us line up as if it were our ball, he just gave the ball to the warriors. Never said a word to us.

"They got an easy basketball. Crazy that it would matter in a 2 point game. Worst officiating non call mistake possibly in the history of the NBA. All they had to do was tell us and they didn't."

Mavericks head coach Jason Kidd also argued the decision with referee Michael Smith at the time to no avail. Cuban disputed the decision courtside with officials too.

In a pool report, crew chief Sean Wright disputed Cuban's account of events, claiming that the referee's original call was a Warriors' ball, followed by another signal to indicate a Dallas timeout.

"There is a second signal, but that signal is for a mandatory timeout that was due to the Mavs," Wright said.

Following the pool report, Cuban added on Twitter with an image of the scene: "Only two refs were on that side of the court and we had 2 guys at half court going to in bound.  The other ref obviously thought it was our ball as well."

Under NBA rules, Cuban must file the protest within 48 hours of the conclusion of the game.

The game came down to the wire, with scores at 123-122 entering the final minute. Reggie Bullock scored a three-pointer on the buzzer to narrow it to a two-point final margin.

Mavs guard Luka Doncic also expressed his frustration after missing a two-point attempt with 3.2 seconds left at 125-122, appearing to rub his fingers like a money gesture aimed at the referee.

Ja Morant says he still had "mixed emotions" upon his return for the Memphis Grizzlies on Wednesday following an eight-game suspension.

Morant had not played since March 3, missing nine games in total, following an incident where he displayed a gun in a Colorado nightclub on an Instagram Live video, but returned off the bench in the 130-125 win over the Houston Rockets.

The Grizzlies guard received a standing ovation from the Memphis guard upon checking into the game with 3:05 left in the first quarter in a show of support. He finished the game with 17 points, four rebounds, five assists and two steals from 24 minutes.

Morant spent 11 days at a Florida counselling facility after stepping away from the Grizzlies to "get help" following the incident, with the NBA later imposing the suspension.

In the lead-up to the game, the All-Star had revealed the whole incident and fallout had taken its toll on him mentally and emotionally, which he reiterated after his return despite the support of the Grizzlies fans.

"It felt good," he told ESPN after the game. "Still a little bit of mixed emotions, but I was excited to be back. I love these guys, I love our fans, I love the organisation for their continued support throughout this process I'm going through. They helped me a lot.

"I was excited to be back. Happy we were able to get a win. Just got to continue what I've been doing and be ready to go each and every night."

Grizzlies head coach Taylor Jenkins said pre-game that the decision to play Morant off the bench was about helping him work his way back into playing shape, having not been able to work out during his stay in Florida. Morant had started the first 240 games of his NBA career.

Morant had been left out of Monday's 112-1208 win over the Dallas Mavericks, where he sat on the bench and also received warm support from the home crowd, following the conclusion of his suspension to build up his conditioning.

"This was something he brought to the table as well as had been on my mind," Jenkins said. "We collectively thought this was the best strategy, at least for the first one or two games and then we'll kind of re-evaluate after that."

"Obviously, we don't have a long runway until the end of the regular season, but we want to be smart with that layoff that we're not doing anything to jeopardise his health."

The Grizzlies' win combined with the Mavericks (36-37) losing 127-125 to the Golden State Warriors clinched the Southwest Division for Memphis (45-27).

"It's big time," Morant said. "We love that we won the division, but we're trying to win a championship, so we've got to continue to do the little things that were helping us win games and continue to do the things that we've been doing good."

Two-time Miami Open champion Andy Murray has been eliminated in the first round of this year's event after a shock 6-4 7-5 loss to world number 76 Dusan Lajovic on Wednesday.

Murray, ranked 53rd in the world, could not find his usual return with Lajovic winning 72 per cent of second-serve points, prevailing in one hour and 38 minutes.

The Serbian claimed only his fourth win out of 16 matches on hard courts since the start of last year, holding his nerve after failing to serve out the match at 5-4 in the second set, converting his third match point in the 12th game.

Lajovic hit 21-14 winners, with Murray committing more unforced errors (15-13). The Serbian converted all three break points he generated.

Former world number six Gael Monfils was forced to retire due to a right wrist injury in his clash with French compatriot Ugo Humbert at 3-3.

Monfils, 36, was playing at only his third event since returning to the ATP Tour following seven months out due to injury.

Argentina's Facundo Bagnis defeated Brazilian qualifier Felipe Meligeni Alves 6-3 1-6 6-4, with his reward a second-round clash with last week's Indian Wells Open winner and top seed Carlos Alcaraz.

World number 50 J.J. Wolf beat world number 48 Alexander Bublik 7-5 6-3 in 79 minutes, earning a second-round clash with sixth seed Andrey Rublev.

World number 74 Martin Fucsovics sent down nine aces as he beat Argentina's Pedro Cachin 6-4 7-6 (7-2) in 107 minutes. Fucsovics will next face seventh seed Holger Rune.

Ilya Ivashka beat Daniel Altmaier 6-2 6-1 to book a second-round clash with third seed Casper Ruud, while Fabio Fognini bowed out, losing 6-4 5-7 6-4 to Jan-Lennard Struff. USA's Brandon Nakashima powered to a 7-6 (7-3) 6-3 victory over Germany's Oscar Otte.

Emma Raducanu was bundled out of the Miami Open in the first round by form US Open champion Bianca Andreescu in a three-set match that lasted two hours and 35 minutes on Wednesday.

The Briton, who won the US Open in 2021, went down 6-3 3-6 6-2 in a genuine tug-of-war against the 31st-ranked Canadian.

Andreescu sent down seven aces for the match, including four in the first set along with 12 winners as she claimed an early lead.

Raducanu responded with greater aggression, securing the crucial break in the eighth game, before serving out to level the contest.

But Andreescu showed composure and quality in the big points in the final set, winning the final four games to round out the victory, sealing a second-round clash with seventh seed Maria Sakkari.

Andreescu finished with 32 winners compared to Raducanu's 20, while the Briton committed 40 unforced errors.

World number 42 Shelby Rogers edged out USA compatriot Sloane Stephens in just under two hours, winning 6-4 3-6 6-2. Rogers will take on second seed Aryna Sabalenka, who is arguably the tournament favourite after top seed Iga Swiatek's withdrawal, in the next round.

Rogers was one of five Americans to progress, including 2020 Australian Open champion Sofia Kenin who defeated Australia's Storm Hunter 6-0 7-6 (7-5).

World number 35 Amanda Anisimova retired down 7-6 (7-5) 5-2 to countrywoman Madison Brengle.

Leylah Fernandez, the player whom Raducanu beat in the 2021 US Open final, advanced into the second round with a 6-4 6-3 victory over Lesia Tsurenko in 88 minutes.

The Los Angeles Clippers will likely begin the playoffs without Paul George, that is if they can make it without him.

The Clippers announced on Wednesday that George suffered a sprained right knee Tuesday and will be reevaluated in two-to-three weeks.

The regular season ends in two-and-a-half weeks and the eight-time All-Star is expected to miss Los Angeles’ final nine games.

With a 38-35 record, the Clippers enter play on Wednesday in fifth place in the Western Conference, but also just one-and-a-half games out of seventh place, which would put them in the play-in tournament.

They are 6-11 without George this season with losses in five of the last seven games he has missed, which does not include Tuesday’s 101-100 defeat to the seventh-placed Oklahoma City Thunder.

George was injured with 4:38 remaining when his knee collided with Luguentz Dort's knee in the air while attempting a rebound and he crumbled to the floor.

He stayed down on the court for a while until being helped off the court, unable to put weight on his leg.

Prior to Tuesday’s defeat, Los Angeles had won five of six with George leading the charge, averaging 28.3 points – 4.5 higher than his season average.

The 32-year-old is averaging 23.8 points, 6.1 rebounds and 5.1 assists in 56 games this season and now the Clippers will have to figure out how to win without their leading scorer to get back to the playoffs after losing in the play-in tournament last season.

The Houston Astros' eight-time All-Star second baseman Jose Altuve will be out of action for at least two months following surgery on his fractured right thumb.

Altuve sustained the injury playing for Venezuela in the World Baseball Classic last Saturday after being struck on the thumb from a pitch by the United States' Daniel Bard.

The Astros confirmed in a statement that the second baseman had undergone surgery and subsequently will not resume baseball activities at least two months.

"Altuve will remain in Houston since Spring Training is in its final week," the Astros statement said. "The Astros ballclub is set to fly to Houston following their Florida Spring Training game on Sunday in West Palm Beach."

The 2023 MLB season commences next Thursday, with the Astros opening their campaign against the Chicago White Sox.

Altuve was a key part of Houston's 2022 World Series-winning team, hitting .300 with 28 home runs, 39 doubles, 18 steals and 103 runs while earning his sixth Silver Slugger Award and finishing fifth in AL MVP voting.

The 32-year-old won the 2017 AL MVP – the same year he helped the Astros win the franchise’s first World Series championship.

Among active players, Altuve ranks seventh in hits (1,935), eighth in doubles (379) and 12th in runs (986).

He was the second MLB All-Star to suffer a serious injury at the World Baseball Classic after New York Mets closer Edwin Diaz tore his patellar tendon, ruling him out for the entire season.

The New York Jets have added a wide receiver while getting rid of another, agreeing to a one-year contract with free agent Mecole Hardman and trading Elijah Moore to the Cleveland Browns.

According to NFL.com, New York will receive the Browns' second-round pick (42 overall) in this year's draft and will send Cleveland their third-round selection (74 overall) for Moore, who showed promise as a rookie in 2021 but had his role diminished this past season and requested a trade in October.

Moore became expendable after the Jets struck a deal with Hardman that could be worth up to $6.5million. The former Kansas City Chief joins a revamped receivers corps that also includes ex-Green Bay Packer Allen Lazard, who agreed to a four-year, $44m contract last week.

Swapping Moore also allows New York to boost its draft capital for a much-rumoured trade for four-time NFL MVP quarterback Aaron Rodgers, Lazard's former Green Bay team-mate.

Hardman figures to replace Moore as the Jets' primary slot receiver and recorded career highs of 59 catches and 693 receiving yards in 2021.

The four-year veteran's numbers dropped to 25 receptions and 297 yards last season as he missed nine games with an abdominal injury that later required surgery, causing him to miss most of the Chiefs' playoff run to their second Super Bowl title in four years.

A second-round pick in the 2021 draft, Moore caught 43 passes for 538 yards and a team-high five touchdowns during his rookie year but began to be phased out of the offense after the first four games of last season. The soon-to-be 23-year-old had just 22 catches, 254 receiving yards and one touchdown over the Jets' final 13 games.

Moore was also benched for one game after reportedly getting into a heated disagreement with then-offensive coordinator Mike LaFleur in October, which prompted a trade request the Jets would not grant at the time.

He now joins a Cleveland team in need of a slot receiver to pair with 2022 starters Amari Cooper and Donovan Peoples-Jones. 

The Browns are now without a pick until the 74th selection of the upcoming draft. Cleveland previously traded their first and third-round choices to Houston in the deal that sent quarterback Deshaun Watson from the Texans to the Browns.