US Open champion Emma Raducanu will miss this week's Mubadala World Tennis Championship after testing positive for coronavirus.

The 19-year-old had been due to take on Tokyo Olympics gold medallist Belinda Bencic in the exhibition event in Abu Dhabi.

However, Raducanu announced on Monday that she will not be able to take part in the tournament as she is now self-isolating. 

"I was very much looking forward to playing in front of the fans here in Abu Dhabi, but unfortunately after testing positive for Covid-19, I will have to postpone until the next opportunity," Raducanu said.

"I'm isolating as per rules and hopefully will be able to get back on court soon."

Raducanu became the first qualifier to win a grand slam title with victory at Flushing Meadows in September, but she has won just two of her five matches since then.

The British teenager, who recently appointed Torben Beltz as her new coach after parting company with Andrew Richardson, will next be in action at the Melbourne Summer Set early in the new year as preparation for the Australian Open.

Tottenham could face Rapid Vienna in the Europa Conference League knockout round play-off with the result of their postponed final group match with Rennes still to be decided.

Spurs' Group G finale, which was due to take place last Thursday, was postponed due to a coronavirus outbreak at the club.

They sit third in the group behind Dutch club Vitesse and it is UEFA's Control, Ethics and Disciplinary Body that will decide which team progresses after the governing body ruled the match with Rennes would not be rescheduled after failing to find a pre-December 31 date that works for both sides.

Vitesse will progress to face the Austrian club if the game is ruled a Rennes win or a draw.

Meanwhile, Tottenham's Premier League rivals Leicester City, who crashed out of the Europa League, were pitted against Randers of Denmark.

Celtic suffered the same fate as the Foxes and the Glasgow giants will take on Bodo/Glimt for a place in the last 16.

They are not the only former European champions in the draw, with Ligue 1 side Marseille drawn against Qarabag and PSV set to face Maccabi Tel-Aviv.

The first legs will take place on February 17 and the return legs a week later.

Conference League knockout round play-off draw in full:

Marseille v Qarabag
PSV v Maccabi Tel-Aviv
Fenerbahce v Slavia Prague
Midtjylland v PAOK
Leicester City v Randers
Celtic v Bodo/Glimt
Sparta Prague v Partizan Belgrade
Rapid Vienna v Vitesse or Tottenham

Colorado Avalanche Jacob MacDonald was alert and responsive after being taken off the ice on a stretcher following a hit from Ryan Lomberg in their win over the Florida Panthers on Sunday.

MacDonald was sent crashing to the ice by Lomberg in the second period, prompting an immediate stoppage in play and a fight between Lomberg and MacDonald's furious team-mate Nicolas Aube-Kubel.

A statement from the Avalanche shortly after said MacDonald had full movement following the second incident in less than a week that has seen an NHL player taken off on a stretcher.

Jujhar Khaira was also carried off in the Chicago Blackhawks' loss to the New York Rangers after a hit from Jacob Trouba.

"Scary moment, but apparently he's seen our trainers and everything's good," Colorado coach Jared Bednar said. "I think [the hit] might have been clean, yeah. I only got the one angle on it. They kept showing it over and over, and it looks clean from there.

"Physicality's part of the game. I don't like seeing guys go down, especially when they can't get up, but I don't think you can take it out of the game." 

Avalanche defenseman Erik Johnson added: "Just tough to see from probably either team. It's a fast game out there, you move upwards of 20 mph. It's physical and things move fast.

"It's an unfortunate play, super scary for Jacob. It's tough, you just never want to see that and hopefully he's OK. 

"That's the stuff that makes you sick to your stomach when it happens to any team-mate or opponent.

"Unfortunately those hits are still part of our game. ... What is that now, two in a week that you've seen guys stretchered off? That's not good for our game."

UEFA has confirmed the Champions League last-16 draw will have to be re-done after a technical error with the initial procedure.

Manchester United and Paris Saint-Germain were set to face each other in the knockout stage, but that headline fixture and the other ties will have to be redrawn after what UEFA labelled as a "technical problem with the software of an external service provider that instructs the officials as to which teams are eligible to play each other."

United were initially drawn to face Villarreal, but the sides were unable to play each other as they had previously featured in the same group.

After complaints from affected clubs, including Atletico Madrid, UEFA later announced the draw would take place again at 1500 CET (1400 GMT).

Los Angeles Lakers star LeBron James believes he is "getting better and better" after he set yet another NBA record.

James became the oldest player in league history, at the age of 36 years and 346 days, to register a 30-point triple-double as the Lakers beat the Orlando Magic 106-94.

According to ESPN, James overtook the late Kobe Bryant, another Lakers great, who was aged 36 years and 99 days when he accumulated 31 points, 11 rebounds and 12 assists in a win over the Toronto Raptors in 2014.

James had 30 points, 11 rebounds and 10 assists on Sunday. He missed a chunk of games through injury at the start of the season, but still ranks third in the Lakers' roster for points (420), behind Russell Westbrook (546) and Anthony Davis (600).

"Who me? How do I continue how I'm playing? Been doing it for 19 years," James told reporters when asked how long he can maintain his recent form.

"Just do what I've been doing. I feel like I'm getting better and better each and every day. I'm getting healthier and healthier.

"That's just my mindset. Don't get involved in how many minutes I played, how many days off.

"I don't confine to that. I think you think negative thoughts or negative energy, it just creeps into your mind. So, I'm as young as I've ever been."

James played both road games in a double-header against the Memphis Grizzlies and Oklahoma City Thunder last week, collecting 53 points, 15 rebounds and 17 assists across those appearances.

His performance on Sunday was put down to getting plenty of rest upon his return to Los Angeles, though that only came after a trip to Phoenix to see his son in action.

"I slept last night from 12 [a.m.] to 8 [a.m.], I got up, ate breakfast and went back to sleep from 8:30 [a.m.] to 12:30 [p.m.]," James explained.

"Sleep. Sleep and inspiration from my son and his team."

Westbrook, who scored 19 points and had seven rebounds against the Magic, added of James: "When he's just being aggressive, he's aggressive in making the right plays and reads, our team's different.

"Tonight was another night where he imposed his will."

The Green Bay Packers and Aaron Rodgers made light work of the Chicago Bears, yet the quarterback is concerned about an ongoing toe problem.

Rodgers threw for four touchdowns and no interceptions as the Packers came from behind to claim a 45-30 win over their rivals on Sunday.

Green Bay (10-3) are the third team in the NFL this season to hit 10 wins, while the Packers have now won six straight games against the Bears.

Rodgers extended his run to 23-5 when starting against Chicago, while he has now enjoyed seven four-touchdown, no interception games against the Bears – the most in NFL history against a single opponent.

Indeed, Rodgers is the only quarterback who also has six such games, having achieved the feat against the Minnesota Vikings. Tom Brady, with five such games against the Buffalo Bills, is the closest to matching Green Bay's talisman in that regard.

His final touchdown pass of the game took Rodgers to 61 career TDs against the Bears, taking him clear of Brett Favre (60) for the most against Chicago.

Rodgers aggravated Chicago after the clash with Green Bay in October, with a taunt of "I own you."

While team-mate Allen Lazard wore a shirt with the slogan "I still own you" to his post-game media conference, Rodgers said he does not need to reiterate the point.

"I've already said what I've said," he explained. "I don't need to double and triple down. I'll let those words stand for themselves."

However, it was not all positive for Rodgers, who conceded the toe injury he has been carrying has not improved.

The reigning NFL MVP sustained the fracture to his pinky toe during his COVID-19 quarantine earlier in the season. Despite allowing the injury time to heal over the Packers' bye week, the 38-year-old revealed he was suffering throughout Sunday's game.

"It feels worse," Rodgers told reporters.

"I don't know what kind of setback that I had tonight but we'll look at it tomorrow. Definitely took a step back tonight."

Rodgers has previously confirmed that surgery is an option, though he is hoping to avoid a procedure if possible. Further scans, set to take place on Monday, will determine the next course of action.

"That would be last resort, for sure," Rodgers added when asked about the possibility of surgery. "But I've got to see what kind of setback it was tonight."

Zlatan Ibrahimovic insisted he does not need to win the Ballon d'Or to prove the Milan star is the best.

Ibrahimovic has won league titles with Ajax, Inter, Barcelona, Milan, Paris Saint-Germain and Manchester United, though the Swedish forward has never claimed the Ballon d'Or.

The evergreen 40-year-old continues to produce for Milan in his second spell at San Siro, where the Rossoneri are dreaming of their first Scudetto since Ibrahimovic helped deliver silverware in 2010-11.

Ibrahimovic's outspoken agent Mino Raiola said he cannot take the Ballon d'Or seriously due to the fact the Sweden international has never received the prized individual honour.

But during a presentation for his new book "Adrenaline" in Milan on Sunday, Ibrahimovic was quoted as saying: "The Ballon d'Or is a nice thing. But I don't need it to prove that I am the best."

The event took place after Ibrahimovic scored his 300th league goal across Europe's top five leagues in Saturday's last-gasp 1-1 Serie A draw at Udinese.

Ibrahimovic came to Milan's rescue in spectacular fashion, his stoppage-time equaliser salvaging a point for the Rossoneri in what was his 450th appearance in the top five leagues – the Premier League, Bundesliga, Serie A, LaLiga and Ligue 1.

Only Cristiano Ronaldo and Lionel Messi have reached that mark previously in the 21st century.

"It's the mentality. I train in the same way that I play," Ibrahimovic said of his longevity.

"Every day is a final. It was difficult when I arrived at Milan [for his second spell], but we've created a group. We've created an atmosphere that is over the top.

"Then there was the pandemic, but the staff here is great. I've worked with other teams in my career, but this is really excellent. The group goes towards the same target. Unfortunately, we didn't win yesterday. I should have scored two goals.

"Now, I wake up with pain every day, but I have adrenaline and I go on. This year, the adrenaline is for the Scudetto. Yesterday I scored a goal, but we didn't win and it hurts."

Kevin Durant edged Stephen Curry's season-best mark with 51 points as the Brooklyn Nets defeated the Detroit Pistons 116-104 in the NBA on Sunday.

Durant was dominant after the Nets opted to rest fellow superstar James Harden for the first time this season, with the former MVP shooting 16 of 31 from the field, including five three-pointers.

The two-time champion and Finals MVP also had seven rebounds, nine assists, two block and one steal in a remarkable all-round display for the Eastern Conference-leading Nets.

The haul was Durant's eighth 50-point game of his NBA career, while it bettered Stephen Curry's season-best 50 points against the Atlanta Hawks on November 8.

Struggling Detroit challenged the Nets, leading by five points at the final change before a 30-13 fourth quarter for the Nets.

Number one draft pick Cade Cunningham had 26 points, eight rebounds, six assists and three steals for the Pistons.

Triple-doubles for Giannis and LeBron

Giannis Antetokounmpo recorded his first triple-double for the season with 20 points, 10 rebounds and 11 assists in the Milwaukee Bucks' 112-97 victory over the New York Knicks. Khris Middleton added 24 points with four triples, while Bobby Portis grabbed a double-double with 19 points and 10 rebounds for the defending champions.

LeBron James also had a triple-double, the 101st of his illustrious NBA career. James scored 30 points, 11 rebounds and 10 assists for the Los Angeles Lakers as they trumped the Orlando Magic 106-94. The Lakers enjoyed a 23-0 third-quarter run on their way to victory.

The Dallas Mavericks won for the first time this season without star Luka Doncic, easing past the Oklahoma City Thunder 103-84, while Karl-Anthony Towns had 23 points with 10 rebounds as the Minnesota Timberwolves beat the Portland Trail Blazers 116-111.

Randle silenced as Knicks beaten

Julius Randle's struggles this season continued against the Bucks, managing only eight points with seven turnovers. Randle shot two of nine from the field.

Brooklyn Nets head coach Steve Nash labelled Kevin Durant "incredible" after scoring an NBA season-high 51 points in the team's 116-104 victory over the Detroit Pistons on Sunday.

The Eastern Conference-leading Nets took down the lowly Pistons thanks to Durant, who shot 16 of 31 from the field, including five three-pointers in a dominant offensive display in the absence of rested team-mate James Harden.

Durant's 51 points usurped Golden State Warriors superstar Stephen Curry's 50-point mark for the previous top individual score this season, while the former also had nine assists and seven rebounds.

"Kevin was incredible," Nash said at the post-game news conference. "Not an easy night. They played extremely hard. Tonnes of energy.

"We were playing different line-ups. I think there were different guys out there at different times trying to find the spacing and the spots, where to be, so there are some challenges there for us.

"For him to be able to score 51, nine assists, seven rebounds, two blocks and a steal, it's incredible."

The haul was Durant's eighth 50-point game of his NBA career, while it was the 10th 50-point game in Brooklyn's franchise history.

Durant dominated the second and third quarters for the Nets, scoring 35 of his team's 55 points during that stretch, as the struggling Pistons challenged.

"I felt like we started the game with a nice energy and then the second quarter they upped the pressure a bit," Durant told reporters.

"I felt like we turned it over a lot in the second and third quarter. I just tried to keep the ball in our hands and take a shot every time as I was turning it over too. I was able to make some."

Nash added that he could not remember such a dominant period by one individual.

"I'm sure it's happened but I can't remember it. He was just outstanding," Nash said.

"I thought his leadership and a willingness to keep us in it, also his defense, was unbelievable."

Atletico Madrid head coach Diego Simeone insisted the defending champions will not give up on the LaLiga title following their 2-0 derby defeat to Real Madrid.

El Derbi honours went to Madrid, who accounted for city rivals Atletico thanks to goals from Karim Benzema and Marco Asensio at the Santiago Bernabeu on Sunday.

Benzema opened the scoring with a sublime finish in the 16th minute before Asensio doubled the lead approaching the hour-mark in the Spanish capital.

The result moved Madrid eight points clear at the summit and 13 points ahead of fourth-placed Atletico, who have a game in hand.

However, Simeone – a two-time LaLiga winner with Atletico – is refusing to concede the title race just yet.

"Obviously the title is race is still up for grabs," Simeone told reporters. "There's loads of games left to be played, but it's obvious that Real Madrid have a healthy lead at the moment.

"That's credit to them. But we know how the Spanish league works. It's complicated, it's long and we can't allow ourselves to just give up and think further ahead than our next opponent, which is Real Betis.

"We have a game less that we haven't played yet. And we'll have to use that to close the gap with the top. We can't think from about anything else, apart from that."

On the defeat to Carlo Ancelotti's Madrid, Simeone added: "I think it was a game that, up until the first goal, was a very level match where there were chances at either side.

"Madrid were very clinical in front of goal and we improved in the second half. We also had chances, but their goalkeeper did very well to keep them out. And from there, their second goal really was a tough blow for us. I think they won, deservedly, and they were just very clinical in front of goal.

"Well, more than anything, I think we put in another big effort and we played well with [Geoffrey] Kondogbia playing defensively as a centre-back. And the team worked collectively very well and we put in a big effort in Portugal. And today, obviously conceding a goal is painful because it comes from a situation that we talked about as a team.

"But Real Madrid are very good on the counter-attack. I like watching their football a lot, sitting deep and working well hard, and they're very good in transition, which is near to our style of play. Obviously [Carlo] Ancelotti is a very, very good manager and he's come back here to do things well and we've seen that the Spaniard."

All-Star guard Zach LaVine is the latest Chicago Bulls player to enter the NBA's health and safety protocols amid a COVID-19 outbreak within the team.

LaVine and team-mate Tony Brown Jr. entered the NBA's health and safety protocols on Sunday, bringing the Bulls' total to nine players since the start of December.

The pair follow DeMar DeRozan, Coby White, Javonte Green, Matt Thomas, Derrick Jones Jr., Ayo Dosunmu and Stanley Johnson in being sidelined.

Once players enter protocols, they must quarantine for 10 days or until they return two negative PCR tests within a 24-hour window.

The Bulls (17-10) are not in action again until Tuesday when they host the Detroit Pistons, where they may have only nine available players.

White and Green will have completed their mandatory isolation period by Tuesday and could be cleared to play.

Under NBA rules, a minimum of eight players are required for a team before postponing a game during an outbreak.

LaVine is enjoying an excellent season, averaging 26.0 points, 4.2 assists and a career-high 5.3 rebounds per game.