Ousmane Dembele has reacted with fury after Barcelona director of football Mateu Alemany ordered the winger to find a new club "immediately".

French winger Dembele has struggled at Camp Nou since joining from Borussia Dortmund in 2017 for an initial €105million.

A string of injury setbacks have hampered his progress, although Barca head coach Xavi recently claimed Dembele could become the "best in the world" in his position.

Dembele's contract runs until the end of the season, meaning this month's transfer window could be the last opportunity for the club to get back any money on their investment.

Barcelona do not want to lose such an expensive signing on a free transfer, and to that end they have been looking to extend his deal, but Alemany said all offers to Dembele "have been continuously rejected by his agents".

Alemany added, speaking to Barca TV on Thursday: "It seems obvious that the player does not want to continue at Barcelona and is not committed to our future project."

This has incensed Dembele, with Alemany going on to say: "We told him and his agents that he must leave the club immediately because we want to have players committed to the project. We expect a transfer to take place before January 31."

Dembele has been linked with clubs including Liverpool, Paris Saint-Germain and Newcastle.

Responding to Barcelona's stance, Dembele issued a long statement on Instagram, saying he would not be "giving in to any blackmail".

The 24-year-old said he had put up with four years of reading lies about himself, declaring that claims had been made "with the sole purpose of harming me". He said it had been a mistake that he had not spoken out sooner.

"From today, I will answer with sincerity and without giving in to any blackmail," Dembele wrote. "I am 24 years old and like any man, I have faults, imperfections. I have known complex moments, injuries, I have been affected by COVID. Without any training, the coach called on me and I always answered present... without batting an eyelid.

"I appreciate the chance to do the best job in the world. Furthermore, my message is clear. I forbid anyone to pretend that I am not involved in the sports project. I forbid anyone to attribute to me intentions that I never had. I forbid anyone to speak in my place, [or] in place of my agent in whom I have complete confidence.

"Still under contract, I am fully concerned and at the disposal of my club, my coach. I have always given my all for my team-mates as well as for all the supporters... and this won't stop now."

Xavi has also told Dembele to sign or be sold, and the player who was acquired after the big-money departure of Neymar to Paris Saint-Germain may have kicked his last ball for Barcelona. He was left out of the squad for Thursday's Copa del Rey last-16 tie with Athletic Bilbao.

Former Barcelona forward Antoine Griezmann responded with fire and heart emojis to Dembele's passionate statement.

"I am not a man who cheats and even less a man who has a habit of giving in to blackmail," Dembele added.

"As you know, there are negotiations. I let my agent take care of this, it is his field. My field is football, simply playing football, sharing moments of joy with my team-mates, with our supporters. Above all, let's focus on the essentials: WINNING."

Lonzo Ball will be out for up to eight weeks after he undergoes knee surgery this week, the Chicago Bulls announced on Thursday. 

After sitting out the past three games, the decision has been made for Ball to have arthroscopic surgery on his left knee – reportedly to repair a torn meniscus. 

A statement from the Bulls read: "Following an initial period of rest and targeted intervention, Bulls guard Lonzo Ball will undergo arthroscopic surgery on his left knee and is expected to return in 6-8 weeks." 

Ball is averaging 13 points, 5.1 assists and 5.4 rebounds for the Eastern Conference-leading Bulls this season. 

Chicago were 6-2 in the eight games Ball has missed this campaign, all of which have come since Boxing Day. 

The Bulls ended a four-game losing streak against the Cleveland Cavaliers on Wednesday and take on the Milwaukee Bucks on Friday. 

Arsenal striker Pierre-Emerick Aubameyang has revealed his heart is "absolutely fine" and he is "completely healthy" after undergoing tests in London.

The Gabon captain returned from the Africa Cup of Nations on medical grounds without playing a game after cardiac lesions were discovered when he underwent health checks.

Aubameyang had tested positive for COVID-19 on January 6 following Gabon's arrival in Yaounde.

The 32-year-old on Thursday stated that he is back in training after getting the all-clear.

He posted on Instagram: "I came back to London to do some additional checks, and I'm very happy to say that my heart is absolutely fine and I'm completely healthy!!

"Really appreciate all the messages over the last few days and I'm already back at it."

Aubameyang has this week been linked with a loan move to Saudi club Al Nassr.

The former Borussia Dortmund man has not played for the Gunners since being stripped of the captaincy due to a breach of discipline last month.

Arteta said of his former skipper during a press conference on Wednesday: "He's in London and going through some examinations because we haven't had any clarity from Gabon about why he came back.

"So it's our obligation to make sure he's safe and in good condition. So far historically with what we've done with the player that's never been an issue."

Pablo Ganet's strike secured a 1-0 win over Sierra Leone as Equatorial Guinea joined Ivory Coast in reaching the Africa Cup of Nations knockout stages from Group E.

These two teams knew a win in Limbe would take them through to the next round, and Equatorial Guinea had been knocking on the door before the breakthrough goal arrived, with Iban Salvador seeing a shot cleared off the line.

The decisive strike came from a clever free-kick routine in the 38th minute, with two passes freeing Ganet for a free shot from the edge of the penalty area. With nobody tracking him, Ganet smashed an accurate shot just inside the right post.

Steven Caulker went close for Sierra Leone with a header early in the second half that bounced a foot wide of the left post, before Dorian Hanza squandered a chance to double Equatorial Guinea's lead, firing way over from close range.

Sierra Leone then had a lifeline when they were awarded an 85th-minute penalty as Ganet sent Issa Kallon to the deck, but Kamara's spot-kick was pushed behind by Jesus Owono.

Losing their composure as hopes of a comeback slipped away, Sierra Leone had Kwame Quee sent off late on for a second bookable offence, a wild and late challenge on Ganet. A stoppage-time penalty award to Equatorial Guinea was overturned when VAR indicated Salvador had been fouled just inches outside the box, and by that point the game had got away from Sierra Leone, who are out.

Ivory Coast marched into the last 16 of the Africa Cup of Nations and sent holders Algeria crashing out with a 3-1 victory at Japoma Stadium.

Algeria needed a win to stay in the tournament, but the sorry defending champions are heading home after finishing bottom of Group E.

Ivory Coast exploited Les Fennecs' frailties to cruise through as group winners and set up a showdown with Egypt, Franck Kessie setting them on their way by volleying in with his left foot to finish off a slick move midway through the first half when Nicolas Pepe squared the ball into his path.

Ibrahim Sangare capitalised on terrible defending to double their lead with a free header six minutes prior to half-time and Pepe was allowed to run forward unchallenged before picking his spot to add a third goal early in the second half.

Riyad Mahrez rattled the right post with a penalty after Simon Deli was adjudged to have fouled Youcef Belaili before Sofiane Bendebka scored Algeria’s first goal of the tournament with a header 17 minutes from time.

Sebastien Haller had what he thought was the Elephants' fourth goal ruled out for offside right at the end, but they gained sweet revenge for a defeat to Algeria at the quarter-final stage of the 2019 showpiece.

Two teams in the NBA are on league-leading four-game winning streaks heading into Thursday's schedule. The pair face one another at American Airlines Center.

The Phoenix Suns have pulled clear of the Golden State Warriors at the top of the West, their league-best record improving to 34-9 while Stephen Curry, Klay Thompson and Co are .500 across their past 10 games.

But this latest Suns run has been matched by the Dallas Mavericks, who are again recovering from a slow start.

The Mavs have won 10 of their past 11 outings after a 16-18 start. In 2020-21, Dallas recovered from an early 8-13 record to take the fifth seed – the same position they again occupy.

Dallas' problems prior to these recoveries have undoubtedly been linked to Luka Doncic, their sensational superstar who has tended to end seasons in more impressive fashion than he begins them.

Doncic has been the preseason MVP favourite in consecutive years but each time showed up looking a little out of shape.

The Slovenian is not denying that, saying in December: "I had a long summer. I had the Olympics, took three weeks off and I relaxed a little bit. Maybe too much. I've just got to get back on track."

But there are signs now that Doncic is delivering as promised. Having returned from an ankle injury to feature in nine of the Mavs' past 10 games, he had a year-high 41 points last time out against the Toronto Raptors. Three of his five triple-doubles for the year have come in this period, too.

Will this improvement continue against Phoenix, though?

The Suns are 5-0 against Dallas across the past two seasons, albeit all five meetings (three last year, two this year) have come during those tricky starts for the Mavs.

Since themselves returning to contention, Phoenix have not yet played a Mavs team in their groove.

PIVOTAL PERFORMERS

Dallas Mavericks – Kristaps Porzingis

The Suns have a wealth of talent, while Dallas too often have only had Doncic. The need for a second man to step up and help the two-time All-NBA First Team selection is evident. Porzingis is the obvious candidate.

While the Mavs struggled while Doncic was out, Porzingis has shown that he can play the role of leading man when required.

His usage rate of 28.6 per cent this year is the highest it has been since he moved to Dallas – explained by Doncic's lay-off – and the knock-on effect is an increased offensive output when the simple option of passing the ball to his team-mate is removed.

Porzingis has scored 22.8 points per game Doncic has missed this season, versus 18.6 when he has played. Even including those the pair have played together, Porzingis' offense improves from 29.8 points per 100 possessions with Doncic to 35.4 without.

Doncic's high usage (36.3 per cent, the highest in the NBA among those involved in 250 or more possessions) reduces Porzingis' role significantly at times, but Dallas need both to fire against a team like the Suns.

Phoenix Suns – Chris Paul

Nominally a point guard, Doncic is more of a point forward, hogging most of the shots himself. In truth, there are few genuine point guards remaining in the NBA. Paul is one of them.

Even at 36, Paul has started all 43 games – ranking 21st in the league for minutes (1,383) – and leads the NBA in assists (429), well clear of second-placed James Harden (390). Not since 2015-16 has he averaged this rate of 10.0 assists per game.

Given the frequency with which Paul is creating shots for team-mates, his assist-to-turnover ratio is even more impressive, ranking second with 4.38 dimes per turnover.

With Curry and the Warriors slightly on the wane, Paul could soon be in serious consideration for the MVP award. A big performance in a big game such as this one would aid his cause.

KEY BATTLE – Doncic to deliver in Ayton's absence?

The Suns will be without center Deandre Ayton, the player they selected first overall in 2018 before Doncic went two picks later.

Ayton, who has an ankle injury, was a little slower than Doncic to truly establish himself but has never struggled against the Mavs, enjoying a 10-1 record in such matchups.

Doncic missed Phoenix's first two wins against Dallas this season and has only three victories in the 11 games he has played versus the Suns.

With Ayton's role in Phoenix's recent success starting to alter the narrative around the 2018 draft, in which Doncic was quickly considered the most talented young player, the Dallas man may see this as an opportunity to send a message.

HEAD TO HEAD

This had been a closely fought rivalry until the Suns' dominance in the Ayton-Doncic years. Now, Phoenix boast a 93-74 record against the Mavs and will hope to improve that further on the road.

Dallas are a more impressive 47-36 in home games against the Suns.

Emma Raducanu revealed members of her support team proposed she should abandon her Australian Open campaign before Thursday's defeat to Danka Kovinic.

The 19-year-old US Open champion was badly affected by a blister on her right hand as she slid to a 6-4 4-6 6-3 defeat on Margaret Court Arena.

Raducanu made a strong start in the opening set before the pain began to kick in, and she said she won the second set "with basically one shot" after being unable to consistently club heavy ground strokes.

But Raducanu could not maintain that level into the decider, suffering her first grand slam defeat in a completed match, having previously pulled out injured during a Wimbledon fourth-round clash with Ajla Tomljanovic before streaking to a sensational first major in New York.

Raducanu did not specify who exactly had suggested she ought not take to the court, but said: "There were some people in my team that maybe didn't want me to play."

A recent case of COVID-19 interrupted Raducanu's preparation for her first major since teaming up with new coach Torben Beltz.

"Because of 21 days, no tennis, my hands got pretty soft," Raducanu said.

She explained blisters had begun to form on her hand in training soon after arriving in Australia, with the current problem – "right in the crease" – having been affecting her since just prior to the Australian Open beginning.

The problem has been getting worse rather than better and Raducanu said the blister had become "pretty deep".

"It's a bit annoying," she said, "because I know it's something that will heal in a few days. It's just unfortunate timing. I have had blisters before but never this bad. It's quite deep, and it's just in a very awkward position that is so difficult to tape."

She said every shot was taking a toll on the blister, with the friction meaning each impact was "very painful".

The forehand slice became a big shot for Raducanu, and it was to her credit that she almost eked a win out of such difficult circumstances.

In the end, world number 98 Kovinic found ways to overcome a hampered opponent, setting up a daunting third-round clash with Simona Halep.

Raducanu said: "I thought it was a pretty good learning experience for me. I discovered tools about myself and my game that I didn't know I had before. That slice forehand is not so bad, and I have some sort of hand skills. That was a positive surprise.

"To get that second set with basically one shot, I can't believe it really.

"Because I'm still young, I feel like I can learn a backhand, I can learn some sort of tactics, but it's quite hard to learn or teach someone that fight and grittiness to hang in there when things are pretty much all against you. So, I'm quite proud of that."

Scott Jamieson holds a one-shot lead from Viktor Hovland after the first round of the Abu Dhabi Championship. 

Jamieson got the first DP World Tour event of the year under way with a brilliant nine-under 63 at the Yas Links course on Thursday.

The Scot was bogey-free through his opening round, hitting the turn in 32 and making another five birdies on the back nine to set the clubhouse target at the DP World Tour's newest venue.

Jamieson started with a birdie and never looked back, fittingly also finishing his excellent round with another gain.

He said in an interview with the DP World Tour: "Eight weeks off from tournament golf, you're always a little bit on edge at the start of the day, but a birdie at the first settled any edge there was and I was just really solid all day.

"One tee shot wasn't very good, but I kind of got lucky and recovered well."

Hovland signed for an eight-under 64 in the opening Rolex Series event of the season, with a bogey five at the 12th the only blemish on the world number seven's card.

The Norwegian had gone out in 31 and finished with a flourish, making three birdies in his final four holes.

World number two Collin Morikawa, winner of the Race to Dubai last year, has work to do following a one-over 73, with Rory McIlroy also having ground to make up at level par.

Thomas Pieters is two shots adrift of Jamieson in third place, while Ian Poulter, Tyrrell Hatton and James Morrison are among a group of five players on six under.

Takumi Kanaya and Victor Perez also started with six-under rounds of 66.

Daniil Medvedev did not hold back following his victory over Nick Kyrgios as he labelled spectators who jeered him during the second-round match of having "a low IQ".

The world number two continued his quest for a second grand slam crown, and a first at the Australian Open, with a 7-6 (7-1) 6-4 4-6 6-2 win over Kyrgios on Thursday.

Medvedev, who is the highest-seeded player at Melbourne Park following Novak Djokovic's withdrawal, prevailed against the home favourite in just under three hours.

He played the role of pantomime villain in front of a partisan crowd fully behind Kyrgios, which the Russian took exception to after sealing a place in the third round.

Medvedev, who will take on Botic van de Zandschulp for a place in the last 16, was particularly unhappy with those who made noise between his serves at Rod Laver Arena.

"It's a little bit disappointing," he told Eurosport. "I guess it's normal, everyone experiences it, especially when you play a home favourite and not just any home favourite, but Nick.

"A few moments on my serve, where he managed to make some good returns, and then break point on second serve and people are cheering like you've made a double-fault.

"That's just disappointing. It's not everybody who's doing it, but those who are doing it probably have a low IQ.

"When you get booed between first and second serves you have to stay calm."

The crowd interrupted the interview, at which point on-court reporter and two-time Australian Open winner Jim Courier attempted to play peacemaker.

Courier pointed out that the noisy crowd were shouting 'siuu' in homage to Cristiano Ronaldo's now-trademark celebration.

"Guys I can't hear him, please show some respect for Jim Courier, he won here guys," Medvedev said.

"Let him speak guys. If you respect somebody, at least respect Jim Courier. I cannot hear him guys."

Kyrgios described the 'siuu' chants as like "being in a zoo" after his first-round match, while Andy Murray admitted to being "irritated" by the persistent chanting.

"What I'm saying is that between first and second serves is not easy," Medvedev added. "I remember the games I lost on the break points it was the case and it's tough to play."

Further embracing his role as public enemy number one after eliminating Kyrgios, Medvedev signed the letters "SIUUUU" in the camera lens before exiting the court.

After winning the US Open, Medvedev is aiming to become the first man in the Open Era to follow up his maiden grand slam title with another in his next major appearance.

Last-year's beaten finalist saw off Henri Laaksonen in straight sets in round one and is now the strong favourite to advance past world number 57 Van de Zandschulp.

Medvedev hit 31 aces against Kyrgios – the highest tally in a single grand slam main draw match – en route to reaching the third round in Melbourne for a fourth straight time.

Reflecting on his impressive win, Medvedev said: "Five years ago I probably would break two racquets, just get angry, start shouting at my box for nothing.

"And it probably would not help me win the match. I could win some [matches] like this, but you cannot win grand slams like this.

"So it makes me really happy because I can still have some tantrums, we all know it, but I've been working on myself. 

"I've been working pretty hard last couple of years and I’m trying to mature as a tennis player and a person.

"The match like tonight, and a few last year, show that I'm capable of being really strong mentally no matter what happens on the court and I'm really happy about that."

Mikel Arteta has urged his Arsenal players to do their talking on the field against Liverpool after accusing unnamed parties of "lying" about the reasons behind Sunday's north London derby postponement.

The Gunners had a request to call off the match against fierce rivals Tottenham accepted by the Premier League on Saturday due to having a lack of players available to choose from.

However, Arteta's side were accused of exploiting the Premier League's rules for a game to be postponed, with the majority of their players absent due to injury, suspension or Africa Cup of Nations duty.

Arsenal had only one confirmed positive COVID-19 case at the time of lodging an application to get the derby called off, but the Premier League deemed they were unable to meet the required number of available players – 13 outfielders and a goalkeeper – despite their Under-23s having a squad of 16 for a game on Friday.

Speaking on Tuesday, Tottenham head coach Antonio Conte felt the decision to postpone the match was "very, very strange".

But Arteta hit back at Arsenal's critics in response to Conte's remarks and added: "We're not going to let anybody damage our name or try to spread lies."

Doubling down on those comments, Arteta said: "We have to defend ourselves. The best way to do that is demonstrate who we are, and the best way to do that is on the pitch.

"Whoever is saying we are trying to do something we are not, that's a lie. We have all the evidence we have to provide. 

"You have to provide evidence individually, all the MRIs, all the COVID cases that you have, you have to put it on the table, you have to explain it, you have to answer more questions and you have to go again and do it. We've done all the right things."

As the fallout from Sunday's derby cancellation continues, Arsenal have a crucial EFL Cup semi-final second leg against Liverpool to prepare for on Thursday.

The tie is delicately poised following last week's goalless draw at Anfield, where Arsenal held on with 10 men for more than an hour after Granit Xhaka's sending off.

And for Arteta, the match at Emirates Stadium represents a chance for his young squad to continue their development by reaching a major final.

"I can sense the excitement when they're training. They're really looking forward to it. The majority of them have not experienced [a semi-final]," he said.

"It's why you play football, it's why you want to play for this club, to win trophies. We want to go through and then go and win it, which is the best memory you can have."

Arsenal confirmed on Thursday that defender Pablo Mari has completed his loan move to Serie A side Udinese.

Mari, who has made 22 appearances for the Gunners in all competitions, will remain at the Dacia Arena for the remainder of the season. 

Kyrie Irving says he is enjoying the pressure placed on him due to the absence of Kevin Durant after delivering a match-winning display for the Brooklyn Nets.

Irving had 30 points, three rebounds and seven assists in a 119-118 win over the Washington Wizards on Wednesday.

The All-Star guard is only able to play road games, due to a vaccination mandate in place in New York City. Irving is unvaccinated against COVID-19.

He made his return two weeks ago and is averaging 20.0 points per game.

The onus was very much on Irving in Washington, with Durant missing the game due to a knee injury sustained against the Oklahoma City Thunder last week.

It has been reported that Durant will be out for between four and six weeks and Irving knows he has to step up in his absence.

"I like the pressure," he told reporters. "I love pressure. It brings out the best in me personally.

"Then also I'm able to carry that energy with the team whether it be communicating with guys in short conversations on the floor or off the floor.

"Just trying to demand responsibility from all of us, from myself first, but from all of us, that this isn't going to be perfect. It's not going to ever look perfect.

"This is just what we have, and we can't replace anybody that's out, but what we can do is fill up the stat sheet with the little things that may show up and things that may not show up.

"We'll see where we are at the end of the game when we leave it all out there playing hard."

Irving had initially been left out of the Nets' roster for the season due to his decision not to get vaccinated, though he was recalled when injuries and COVID-19 cases took their toll.

"It feels incredible [to be back]," Irving said. "I don't take one day for granted.

"I know it's difficult at times, not only for just me, but for everyone else, just the monotony coming in every single day working on [our games], but this is what we signed up for when we were playing in fifth grade, fourth grade, this was the dream right here. Just getting on the road and trying to win some ballgames and play at a high level."

Joel Embiid was "unbelievable from the start" as he racked up a half-century of points in the Philadelphia 76ers' 123-110 victory over the Orlando Magic on Wednesday.

That was the verdict of 76ers head coach Doc Rivers, who watched Embiid match his career-high points tally of 50 in only 27 minutes on court at Wells Fargo Center.

The four-time NBA All-Star became the first center to score at least 50 points in a match this season, also taking 12 rebounds and providing two assists as he stole the show.

Embiid emulated the great Wilt Chamberlain, who had been the only other Sixers player in history to register multiple 50-plus points in a game and also claim 10 or more rebounds.

Rivers said of the 27-year-old's stunning display: "He was unbelievable, from the start."

He added: "I played with Dominique [Wilkins], and I don't know if I've seen that. 

"I've seen Dominique score more, but it took the whole game. That was easy, quick, efficient and determined."

Embiid amassed his half-century and 10 rebounds quicker than any NBA player since 1955.

He spent only 58 seconds on court in the final quarter after swinging the game firmly in Philadelphia's favour, moving them to 26-18 in fifth spot in the Eastern Conference.

Magic acting head coach Jesse Mermuys doffed his cap to Embiid, saying it was impossible to contain him.

He said: "With the way he was playing, there was really no way to go get him. He hit fadeaways, step-backs. I mean, he was impressive."

A hampered Emma Raducanu crashed out of the Australian Open with a defeat to Danka Kovinic in the second round on Thursday.

World number 98 Kovinic beat the US Open champion 6-4 4-6 6-3 on Margaret Court Arena to become the first player representing Montenegro to reach the third round of a grand slam.

Raducanu was troubled by a blister on her right hand and although the 17th seed showed her fighting spirit to take a topsy-turvy match the distance, she was unable to avoid an early exit.

It had all started so well for the 19-year-old Raducanu, but Kovinic won five games in a row from 3-0 down in the first set and although the Brit got back on serve at 5-4, she was fell behind after being broken for a fourth time.

Clearly restricted by her damaged hand, the favourite mixed up her approach intelligently with a measured sliced forehand and levelled the match courtesy of two breaks, an overcooked forehand from Kovinic ending the set.

Kovinic saved four break points early in the decider and broke when her opponent sent a backhand long, but the battling world number 18 hit straight back to get back on serve at 3-2.

However, a stroke of good fortune via the net cord gave Kovinic another break point, which she won with a brilliant lob and went on to serve out the match.

Kovinic will face two-time major winner Simona Halep or Beatriz Haddad Maia for a place in the fourth round at Melbourne Park, having struck 40 winners to Raducanu's 27 in the biggest win of her career.