The Milwaukee Bucks should not be in "panic mode" despite their worst losing run in almost three years, according to Giannis Antetokounmpo.

The Bucks have led the NBA over the past two regular seasons but are now on a four-game losing streak for the first time since March 2018, falling to 16-12.

Their latest setback came at home to the Toronto Raptors, who closed out a 124-113 win on Tuesday, led by Fred VanVleet's 33 points.

Milwaukee, who host Toronto again on Thursday, have allowed 123 points per game over this miserable stretch and have missed Jrue Holiday, who has been out for five games due to health and safety protocols.

But two-time reigning MVP Antetokounmpo insisted the poor run is "not the end of the world".

"I kind of have a feeling that everybody is in a panic mode, which should not be the case," he said after contributing 34 points, 10 rebounds, eight assists, five steals and two blocks against the Raptors.

"We should keep improving, we should keep playing good basketball, we should watch the film, and at the end of the day, we've got to go out there and compete. When you come here, nothing can be easy."

He added: "At the end of the day, we lost four in a row; we're not going home. We're still here. It's not the playoffs.

"Obviously, it's frustrating. We want to win, especially a game like this. A big game, guys playing hard.

"You want to come out and win the game, but it doesn't always go your way. But you've always got to look at the bright side of it. You still have another opportunity on Thursday.

"So, keep getting better, watch the film, improve, keep everybody in a good place, and it's not the end of the world right now."

Antetokounmpo acknowledged Holiday's absence has been keenly felt.

The former New Orleans Pelicans guard has a team-best plus/minus of 7.5, posting 16.4 points and 5.4 assists while also leading the Bucks in steals (44 at 1.9 per game).

"We have to be better," Antetokounmpo said. "Obviously, one of our best players on the team and playmakers and best defenders on the team is not playing with us.

"Obviously, it's not an excuse. I'm not a guy that gives excuses. But it's a big part of who we are, and we need him."

Marco Rose has offered assurances he will not try to take any Borussia Monchengladbach players with him when he joins Borussia Dortmund next season.

It was confirmed on Monday that Rose had made use of an exit clause in his Gladbach contract and agreed to take over at Signal Iduna Park from the 2021-22 campaign.

Dortmund have also been linked with a move for Germany international Florian Neuhaus, who has established himself as a key figure under Rose at Borussia Park.

However, Rose ruled out the possibility of any players following him to Dortmund.

Asked specifically if he would oppose the BVB hierarchy if they wished to sign a Gladbach player, he said: "Yes, I would say that.

"If Marco Rose says he won't take a player to Borussia Dortmund, then he won't take a player to Borussia Dortmund. Period."

He added: "Despite my move in the summer, 100 per cent of my energy is in my work here. There had been pressure growing, so I had to make a gut decision and the challenge in Dortmund is what appeals to me.

"I'm very happy to be here and want to carry on until the summer. It was not an easy decision to leave, but one I had to make to calm the situation.

"I completely understand the fans' disappointment. It was a personal decision, but I have always given my best here and will continue to do so until the summer."

Gladbach are in the hunt for a top-four finish in the Bundesliga and have a Champions League last-16 tie with Manchester City approaching.

Sporting director Max Eberl is confident Rose's departure will not be the catalyst for a mass exodus at Gladbach.

"Every player wants to know who his coach will be in the future. We will continue the current discussions with the players and I am convinced that we will continue with them successfully," said Eberl.

"[The club is] not dependent on individual people. I am almost dismayed that it seems that people do not trust that the club will emerge from this situation even stronger."

Jesse Marsch has been tipped to replace Rose at Gladbach, having also succeeded him at Salzburg in 2019, but Eberl was unwilling to comment on the rumours and said there is no rush to appoint a new head coach.

"We will start to take a close look at which coaches could suit Borussia. I will go about by my job in time, but I definitely won't be commenting on any names that we have been linked with," said Eberl.

Steve Nash said the Brooklyn Nets were "rightfully excited" about "a great morale booster" after a sensational fightback against the Phoenix Suns.

The Nets were down 24 points late in the second quarter and 21 at halftime, failing to lead at any point until a clutch James Harden three with 31.4 seconds remaining.

Harden added late free throws to clinch an epic 128-124 win, the first in franchise history after trailing by 21 points or more through two quarters.

The victory came despite Kyrie Irving's absence with tightness in his lower back, while Kevin Durant remained out due to a hamstring injury.

Coach Nash said of the locker room post-game: "It's all vibes in there right now, all vibes.

"The guys are rightfully excited. It's a great morale booster, especially missing Kevin and Ky and finding a way to make up for a 24-point deficit.

"We showed a lot of character, a lot of heart, and as a coaching staff, that just makes you proud."

Harden carried the team in the closing stages when the Nets went on a 12-0 run over the final two and a half minutes.

The last team to trail by at least eight points at that stage of a game before scoring 12 or more unanswered points to win were the Los Angeles Lakers in Kobe Bryant's final game in 2016.

Harden contributed 38 points - his most since moving to Brooklyn - along with 11 assists and seven rebounds, but he hailed the effort of the whole team.

"This is the true definition of a team; one man, two men go down, it's just next man up," he said.

"We got down 20-something at halftime and we didn't give up, we didn't quit, kept fighting. We cut the deficit down, kept fighting, and gave ourselves the chance to win it at the end of the game. Things went our way."

It does not get any easier for the Nets now, though, with defending champions the Lakers up next.

"We know who they have over there," Nash said. "We know how well they're coached and what they've been able to do in the last year or so.

"So it's a great test for us. You load the guys up and be ready to go and try to keep getting better."

But Harden is focused only on Brooklyn's continued improvement as they aim to extend a four-match winning run, over which Harden has averaged 26.3 points per game.

"Obviously, offensively we're really, really good," he said. "Defensively, we're not so great.

"So we have to find ways to be better in that category, which we all know. We're working on that, and whether it's the Lakers or any other team, that doesn't get us excited because we're still working on ourselves, if that makes sense.

"Obviously, we understand that calibre of team we're playing. But then the whole situation is we are working on ourselves."

Rugby World Cup-winning South Africa captain Siya Kolisi has officially signed with the Sharks.

Kolisi was at the weekend released from his contract with the Stormers, which had been due to expire in October, upon the acceptance of a transfer fee.

The 29-year-old flanker was expected to join Durban-based franchise the Sharks and that move was confirmed on Wednesday.

Kolisi made 118 Super Rugby appearances in his 11 years with the Stormers, for whom only Schalk Burger (123) managed more.

Jennifer Brady believes a two-week hard quarantine upon arriving in Australia helped her make a run to the semi-finals at Melbourne Park.

As one of the 72 Australian Open entrants that had potentially been exposed to COVID-19 on chartered flights to Melbourne, Brady was forced to stay in a hotel room for a fortnight ahead of the first grand slam of the year.

However, the 25-year-old booked her place in the final four on Wednesday by coming from behind to defeat Jessica Pegula 4-6 6-2 6-1 in an hour and 40 minutes on Rod Laver Arena.

While some players voiced their displeasure with the conditions they were faced with in self-isolation, Brady felt the period served her well.

"I was pretty much going non-stop since June of last year. I was playing World TeamTennis, then played tournaments in the US, then went over to Europe and was training in Europe till December," said Brady.

"I didn't have any weeks off. Mentally I was feeling a little bit fried, to be honest. I think I used that two weeks to kind of reset mentally and also physically, just give myself, my mind, my body a little bit of a rest.

"I would say I didn't really have high expectations on myself to do well. I came out of the quarantine, and then we were lucky enough to have a separate tournament for us who were in the hard lockdown. I was lucky to get a couple matches in there before starting here in the Australian Open."

The 22nd seed will take on Karolina Muchova in the last four, the Czech having stunned world number one Ash Barty earlier in the day. In the other half of the draw, Serena Williams will take on Naomi Osaka.

Brady hopes to get an opportunity to challenge herself against 39-year-old veteran Williams, who is chasing a record-equalling 24th major singles title.

"I think just being in the same draw as Serena is obviously... when she retires, if she retires, it's going to be something I'll be extremely grateful for. I hope I get to play her before she retires," said Brady.

"Yeah, I think she's the G.O.A.T. She's the greatest of all time and definitely will be the greatest of all time."

Brady made her first grand slam semi-final appearance at last year's US Open, when Williams and Osaka were also in the final four.

She suffered a three-set loss to Osaka on that occasion, but she is pleased to be performing on a par with the Japanese and Williams.

"I think it says a lot. They're obviously great, great tennis players, champions of the sport. To be categorised in the same group as them, I'll take that as an honour," said Brady.

"I think it's a huge achievement for me to make the semi-finals here. I look to make the finals, so we'll see."

Only Muchova stands between Brady and a first major final and fans will be able to attend after lockdown was lifted in Victoria, with a crowd of 7,477 – approximately 50 per cent capacity – allowed for each session.

Brady said of her next opponent: "She's crafty. She looks to move forward, has an all-court game. She's really athletic.

"I hope it will be a good, competitive match. Yeah, I'm looking forward to it."

Daniil Medvedev secured his first Australian Open semi-final berth after continuing his domination of fellow Russian Andrey Rublev in straight sets.

Medvedev starred in the Melbourne heat as countryman Rublev faded, winning 7-5 6-3 6-2 on Wednesday to reach his third grand slam semi-final, equalling Alex Metreveli for third place on the Open Era list for most major semis by a Russian man.

World number four Medvedev – the fifth Russian man to reach the Australian Open semis in the Open Era, after Metreveli (1972), Yevgeny Kafelnikov (1999-2000), Marat Safin (2002, 2004-05) and Aslan Karatsev (2021) – will face either 20-time slam champion Rafael Nadal or Stefanos Tsitsipas for a spot in the decider.

Medvedev and Rublev were meeting for the fourth time on the ATP Tour – their second in a grand slam quarter-final, with the former winning all previous meetings in straight sets. 

Runner-up at the 2019 US Open, Medvedev had a glimpse on Rublev's serve before breaking in the sixth game for a 4-2 lead, only to hand the break straight back to his countryman.

The tense battle continued behind closed doors on Rod Laver Arena as a tie-break loomed large, until Medvedev closed out the 46-minute set on Rublev's serve.

It was a similar theme in the second set, with little separating the two Russian hopefuls under the warm Melbourne sun.

Rublev, who won five ATP Tour titles last year – more than any other player, while earning a joint-best 41 wins in 2020 alongside world number one Novak Djokovic, continued to take the match to Medvedev.

Three break-point chances came Rublev's way in the seventh game, but he was unable to convert and Medvedev made him pay as the world number four broke the very next game before earning a two-sets-to-love lead.

Rublev – eyeing his first slam semi – deteriorated in the warm conditions, often hunched over between points while trying to keep cool in the shade, as Medvedev cruised.

Data Slam: Medvedev extends streak
There is no stopping Medvedev at the moment after he extended his winning streak to 19 matches, already a career-best run – dating back to the Vienna Open last October.

WINNERS/UNFORCED ERRORS
Medvedev – 30/33
Rublev – 20/39

ACES/DOUBLE FAULTS
Medvedev – 14/4
Rublev – 8/3

BREAK POINTS WON
Medvedev – 5/11
Rublev – 1/5

LeBron James' double-double fired the Los Angeles Lakers back to winning ways, while James Harden stepped up to rally the Kyrie Irving-less Brooklyn Nets past the high-flying Phoenix Suns.

James put up 30 points, 13 rebounds and seven assists as the reigning NBA champions leaned on their defense in the 112-104 victory over the last-placed Minnesota Timberwolves.

Without the injured Anthony Davis, Dennis Schroder played the supporting role for James, posting 24 points, while the Lakers battled to claim eight steals and seven blocks in a closely fought contest.

After taking a two-point lead into the fourth quarter at Target Center, the road side pulled away in the closing stages to improve to 22-7 in second place in the Western Conference.

Harden pulled out the stops with a double-double to lead the Nets to a sensational 128-124 comeback win against the Suns, despite playing without Irving after the star guard felt tightness in his lower back.

Nets coach Steve Nash revealed Irving received treatment at half-time of Brooklyn's win against the Sacramento Kings on Monday but expects the six-time All-Star to only be sidelined in the short term.

The Nets surged, scoring 40 fourth-quarter points to turn around a 24-point deficit, with Harden (38 points, 11 assists and seven rebounds) backed up by Joe Harris (22 points) as they halted the Suns' six-game winning streak.

Jokic burns Celtics but Nuggets fall short, Zion on target for Pelicans

Nikola Jokic lit up the Boston Celtics, scoring 43 points, but the Denver Nuggets could still not make triple-digits as their three-game winning stretch was ended in a 112-99 loss.

Zion Williamson shot an efficient 31 points, sinking 13 of his 16 field-goal efforts and going four-of-four from the free-throw line, as the New Orleans Pelicans snapped a three-match losing run with a 144-113 win over the Memphis Grizzlies.

Meanwhile, Damian Lillard’s 31-point, 10-assist double-double led the Portland Trail Blazers past the Oklahoma City Thunder in a 115-104 win, while centre Enes Kanter pulled down 21 rebounds.

Bazley struggles to take his chances

The Thunder never recovered against the Blazers after falling 34-21 behind in the first quarter and forward Darius Bazley was one player that could not find his range.

Bazley shot four from 16 from the field for 14 points during his 36 minutes on court, only dropping one his seven efforts from three-point range.

Giannis powers up but the Raps edge the Bucks

Giannis Antetokounmpo proved unplayable at times, scoring 34 points in the Milwaukee Bucks' 124-113 loss against the Toronto Raptors, as he ghosted past three defenders for one of his buckets.

Tuesday's results

Boston Celtics 112-99 Denver Nuggets
Portland Trail Blazers 115-104 Oklahoma City Thunder 
Los Angeles Lakers 112-104 Minnesota Timberwolves
New Orleans Pelicans 144-113 Memphis Grizzlies 
Toronto Raptors 124-113 Milwaukee Bucks 
Brooklyn Nets 128-124 Phoenix Suns

Jazz at Clippers

There has been no stopping the Utah Jazz, who have won eight straight and 19 of their past 20 games to establish a lead in the Western Conference, but a tough challenge awaits when they go on the road to face the third-placed Los Angeles Clippers on Wednesday.

Sofia Kenin revealed she had her appendix removed after being diagnosed with acute appendicitis following her shock Australian Open exit.

Australian Open champion in 2020, Kenin was dethroned in the opening week of the grand slam at Melbourne Park, where she was stunned by Kaia Kanepi in the second round last Thursday.

American star Kenin – who suffered her earliest major exit since Wimbledon in 2019 – revealed via social media on Wednesday that she had an operation in Melbourne.

"Hey guys! I want to share with you what happened to me a few days ago," Kenin said via Twitter.

"I went to the tournament physician office on Monday, February 15th with acute abdominal pain. I was evaluated by the tournament physician and referred to the hospital for further evaluation.

"Acute appendicitis was diagnosed following the completion of my CT scan. I had to have surgery and had my appendix removed on Monday, February 15, at Epworth Hospital Richmond. 

"I want to thank everyone at Epworth Hospital Richmond for taking good care of me!"

Boston Celtics star Jayson Tatum admitted he is still battling with the after-effects of coronavirus despite returning to NBA action three weeks ago.

Speaking ahead of Boston's 112-99 win over the Denver Nuggets on Tuesday, where Tatum contributed 21 points, six rebounds and eight assists, the All-Star revealed he was still experiencing respiratory issues during games.

Tatum tested positive for COVID-19 in early January, alongside some team-mates, forcing three Boston games to be postponed.

"I think it messes with your breathing a little bit," Tatum told reporters.

"I have experienced some games where, I don't want to say struggling to breathe, but you get fatigued a lot quicker than normal. Just running up and down the court a few times, it's easier to get out of breath or tired a lot faster; I've noticed that since I've had COVID.

"It's just something I'm working on. It's gotten better since the first game I played, but I still deal with it from time to time."

The Celtics have a 7-10 record since then, slipping to third in the Atlantic Division of the Eastern Conference, behind the Philadelphia 76ers and Brooklyn Nets.

After a period of quarantine, Tatum returned to the court with 24 points against the Chicago Bulls on January 25.

Tatum has not missed any of Boston's 12 matches since returning, top scoring for the Celtics on seven occasions, insisting the issues have not affected his performances or output.

"It's gotten better obviously from the first game I came back and played, but I guess it's just a long process," he said.

"I've talked to other guys that have had it and they say they experienced the same thing and it kind of just gets better over time. But as much as we play, I guess it takes a little bit longer.

"You've got to take it on the chin when things aren't going great and you're not playing how you should be."

World number one Ash Barty refused to criticise Karolina Muchova's reasoning for a medical timeout after she was surprisingly beaten in the Australian Open quarter-finals.

Barty's bid to become the first Australian woman to win the Melbourne grand slam since 1978 came to a shock end on Wednesday, upstaged by 25th seed Muchova 1-6 6-3 6-2.

Winner of the 2019 French Open, Barty raced through the opening set in 24 minutes and led 2-1 in the second before Muchova requested an off-court medical timeout on Rod Laver Arena.

It was a turning point, Muchova returning reinvigorated as the unheralded Czech reached her maiden major semi-final in remarkable fashion, with the 24-year-old revealing during her on-court interview, "I was a bit lost [gestures at head] on the court and my head was spinning so I took a break. It helped me.

"It was more they just checked my pressure because I was a bit lost. I was spinning. So they cooled me down a bit with ice and it helped me."

Asked about Muchova's actions, Barty told reporters: "It's within the rules. She's within her rights to take that time. If she wasn't within the rules, the physios and the doctors would have said so. That's the laws of our game, is that we have those medical timeouts for cases that are needed. Obviously she needed that today. Completely within the rules for her to take that.

"From my point of view, I've played a lot of matches where there have been medical timeouts. I've taken medical timeouts myself before, so that shouldn't be a massive turning point in the match. I was disappointed that I let that become a turning point. I'm experienced enough now to be able to deal with that. It's a disappointment today without a doubt. But we learn and we move on."

Barty added: "I would have liked to have just been a little bit sharper the next game. Started well with the first point, just made a couple loose errors in that game. I think for the rest of the set, that was the story, it was just over and over-made. Probably pressed a little bit trying to be overly aggressive.

"Had some break points, I think it was that three-all, that was probably a bit of a critical game in the momentum there for the second set. Just disappointed with the fact that I wasn't able to bring the match back on my terms after she took that break."

"I didn't hear what she said when she called for the trainer," Barty continued. "That's not my decision. When you call for the trainer, you obviously tell the umpire what the reason is. And then the doctor and physios come out and assess it. That's within the rules. For me, that's not really my decision and not my concern what she took the medical for.

"Obviously there are rules when we go off the court for whatever areas you're getting treated because that's quite normal. But, yeah, that's not really my decision to make on whether or what her medical condition was or what the timeout was for."

Brady, who tallied 31 unforced errors in the final two sets having only managed six in the first, said: "It's heartbreaking, of course. But will it deter me, will it ruin the fact we've had a really successful start to our season? Absolutely not.

"The sun will come up tomorrow. We go about our work again. You're either winning or you're learning. I think today is a massive learning curve for me, for Tyz [coach Craig Tyzzer], my team as well. We take the positives out of it, without doubt and don't let this particular match, this particular hour of tennis deter us from what we're trying to do."