Rafael Nadal has history in his sights, but Novak Djokovic stands in his way at an Australian Open he has almost made his own.

With Roger Federer absent from the year's first grand slam, all eyes in the men's draw will be on Nadal and Djokovic.

As the fight between the 'Big Three' continues as to who will finish their career with the most majors, Melbourne shapes as again playing a key part, particularly amid the ongoing uncertainty due to the coronavirus pandemic. After winning his 13th French Open last year, the equation is simple for Nadal. His success at Roland Garros drew him level with Federer on 20 majors, the most by a man all-time.

But with the GOAT debate sure to continue for decades to come, a second title in Melbourne would also lift the Spaniard into uncharted territory. Nadal has the chance to become the first man in the Open Era to win every grand slam at least twice. Federer and Djokovic are both missing a second crown at Roland Garros.

For all his dominance in Paris, that would add another feather to the cap for 34-year-old Nadal. Most of Federer's major success has come at Wimbledon (eight titles), while Djokovic's has been at the Australian Open (also eight titles) – both establishing men's records at those tournaments. Nadal has been runner-up four times in Melbourne since his only title in 2009, while he has reached at least the quarter-finals in the past four years.

But just as Nadal, who is dealing with a back injury ahead of the tournament, stands in the way at the French Open, he will need to get past Djokovic – or have some luck – in Australia.

The Serbian has a 75-8 win-loss record at the tournament, including winning the past two titles. He has won the crown every time he has reached the semi-finals. Djokovic's previous blip in Melbourne came in 2017 and 2018, surprisingly beaten by Denis Istomin (second round) and Chung Hyeon (fourth round) respectively.

A year younger than Nadal, Djokovic is a 17-time grand slam champion, and he has made no secret of his desire to hold the record for most majors won by a man. Djokovic and Nadal have claimed nine of the past 10 majors, although the other one came recently as Dominic Thiem clinched last year's US Open, where the Spaniard and Federer were absent.

With preparations impacted by COVID-19, perhaps Thiem, Daniil Medvedev, Stefanos Tsitsipas, Alexander Zverev or Andrey Rublev could threaten as the wait goes on for a changing of the guard in men's tennis.

But all eyes are unsurprisingly on Nadal and Djokovic as history again beckons.

Garbine Muguruza continued her impressive form to book a meeting with Ash Barty in the Yarra Valley Classic final.

Muguruza, the Spanish sixth seed at the WTA 500 event, crushed Marketa Vondrousova 6-1 6-0 on Saturday.

The two-time grand slam champion has lost just 10 games in four matches on her way to the final.

Muguruza lost just eight points on serve against Vondrousova while converting five of 11 break points.

She will meet Barty in the final after the Australian benefited from Serena Williams' withdrawal as the 23-time grand slam winner deals with a shoulder injury.

Naomi Osaka and Victoria Azarenka also withdrew on Saturday from the Gippsland Trophy and Grampians Trophy respectively.

At the Grampians Trophy, Anett Kontaveit was given a passage into the semi-finals, where Maria Sakkari awaits after her 6-4 6-2 win over Angelique Kerber.

Jennifer Brady and Ann Li will meet in the other semi after wins over Barbora Krejcikova and Sorana Cirstea respectively.

Elise Mertens will play the Gippsland Trophy final after Osaka's withdrawal with the Belgian to face Kaia Kanepi, who overcame Ekaterina Alexandrova 6-3 7-6 (8-6) to reach her first WTA decider since 2013.

Naomi Osaka said the scheduling of lead-up events was a factor in her decision to withdraw from the Gippsland Trophy on Saturday.

The three-time major champion opted to pull out of her scheduled semi-final against Elise Mertens due to a shoulder injury.

Osaka, 23, was due to play a fourth match in five days, but decided to withdraw ahead of the Australian Open starting on Monday.

"Anyone that's kind of followed me for a bit knows that I've kind of had a slight shoulder thing since like 2018 in Beijing," the Japanese star told a news conference.

"It kind of flared up again because I played a lot of matches back-to-back. But, for me, my main focus is hoping I can rest enough before the Open."

Osaka, who will face Anastasia Pavlyuchenkova in the Australian Open first round, said the time between the Gippsland Trophy and year's first major also impacted her decision.

"I would say it is a factor because for me, I don't normally play the tournament right before a slam," she said.

"But I felt like it was really necessary to get matches in. I think everyone felt that way.

"I'm kind of sad that I wasn't able to play today. But I think in the end it's the right decision."

Giannis Antetokounmpo dominated again as the Milwaukee Bucks won a third straight game, while the Boston Celtics edged the Los Angeles Clippers.

Two days after posting a triple-double against the Indiana Pacers, Antetokounmpo had a double-double in a 123-105 win over the Cleveland Cavaliers in the NBA on Friday.

Antetokounmpo finished with 33 points, 12 rebounds and four assists for the Bucks (14-8).

Jrue Holiday went eight-of-nine from the field for his 17 points, while Collin Sexton (19 points) top-scored for the Cavs.

Jayson Tatum inspired the Celtics to a 119-115 victory over the Clippers.

He finished with 34 points and Kemba Walker chipped in with 24 for Boston, while Clippers star Kawhi Leonard had 28.

Zion reaches 1,000, Nets fall amid Durant drama

Zion Williamson had 18 points in the New Orleans Pelicans' 114-113 victory over the Pacers. He reached 1,000 career points in his 44th career game, becoming the fifth player in the past 40 years to do so in 44 games or fewer – joining Blake Griffin, Shaquille O'Neal, David Robinson and Michael Jordan.

Brandon Ingram (30 points, seven assists and six rebounds) led the way for the Pelicans.

Kevin Durant endured a rollercoaster day with the Brooklyn Nets. The star was removed from the starting lineup due to the NBA's health and safety protocols. After being allowed to enter the game in the first quarter, he exited in the third due to contact tracing. Pascal Siakam (33 points and 11 rebounds) guided the Toronto Raptors past the Nets 123-117.

The Utah Jazz hit a franchise-record 26 three-pointers in a 138-121 win over the Charlotte Hornets. Bojan Bogdanovic (31 points) made seven of them, while LaMelo Ball had 34 points for the Hornets.

Nikola Vucevic posted a huge double-double of 43 points and 19 rebounds to guide the Orlando Magic past the Chicago Bulls 123-119. He joined Dwight Howard and O'Neal as the only players to reach 43 points and 19 rebounds in a game for Orlando.

Beal's streak comes to an end

After 25-plus points in 17 straight games to begin the season, Bradley Beal's streak came to an end in the Washington Wizards' 122-95 loss to the Miami Heat. Beal was one-of-14 from the field for just seven points in 27 minutes.

Jazz red hot

Utah were on a roll from deep against the Hornets. They went 26-of-50 from three-point range in their record performance.

Friday's results

New Orleans Pelicans 114-113 Indiana Pacers
Orlando Magic 123-119 Chicago Bulls
Toronto Raptors 123-117 Brooklyn Nets
Milwaukee Bucks 123-105 Cleveland Cavaliers
Utah Jazz 138-121 Charlotte Hornets
Miami Heat 122-95 Washington Wizards
Minnesota Timberwolves 106-103 Oklahoma City Thunder
Phoenix Suns 109-92 Detroit Pistons
Boston Celtics 119-115 Los Angeles Clippers

Nets at 76ers

The Nets (14-10) are set to be without Durant for a clash against Eastern Conference leaders the Philadelphia 76ers (16-7) on Saturday.

Steve Nash believes Kevin Durant will miss Saturday's clash against the Philadelphia 76ers, but the Brooklyn Nets head coach is unsure how long the star will be out.

In an unusual series of events, Durant was named in the Nets' starting lineup to face the Toronto Raptors on Friday before being removed due to the NBA's health and safety protocols.

But Durant was allowed to enter the game in the first quarter, only to then exit in the third – again due to coronavirus protocols – as the Nets fell 123-117.

Nash said he was unsure how long Durant, who missed three games in January due to the health and safety protocols, would be sidelined.

"I don't believe he'll come to Philly, but I don't think that necessarily they've decided," he told a news conference.

"It's just a contact-tracing procedure and it's to be determined how much time he'll have to miss, but we're just gathering information still at this point."

Durant finished with eight points, six rebounds and five assists in 19 minutes against the Raptors.

Nash admitted he got distracted by Durant's situation as the Nets slipped to 14-10.

"If I'm honest, I probably didn't handle it great, just trying to juggle all those balls, all that different information, what does it mean," he said.

"I probably got a little distracted about thinking what it means long-term for our team. We've already been playing guys a lot of minutes and if Kevin's not playing are we going to run the remaining guys too many minutes.

"Maybe I got a little bit distracted by the big picture but that's the way this year's going to be. We're going to be in and out of COVID situations and minute pile-ups and all the difficulties that we're going to face this year and it's going to be similar for everyone.

"We just have to try to adapt and be able to bounce back from little setbacks like this and unfortunately we couldn't bounce back to win the game, but we've got to be able to bounce back this next week and play well and keep getting better."

Serena Williams admitted she would be dealing with her shoulder injury during the Australian Open, but the star is "very confident" she will be ready to go.

Williams withdrew from the Yarra Valley Classic on Friday due to a right shoulder injury.

Asked how she was feeling on Saturday, the 23-time grand slam singles champion was upbeat.

"I feel pretty good. I've gotten a lot of treatment already on my shoulder.  But I'm super confident it's going to be great," Williams told a news conference.

"I'm feeling very confident, I think is a better word, and getting ready for hopefully the next two weeks."

However, Williams said the injury would be an issue throughout the Australian Open, which begins on Monday.

"It's definitely something that I'm going to have to deal with for the fortnight. Kind of knowing that going into a tournament definitely helps," the 39-year-old said.

"Also knowing, okay, I'm going to have to probably pick up some different therapy exercises after each match, etcetera.

"It's going to be really important."

Williams' last grand slam title came in Melbourne in 2017 and all eyes will again be on the American in her bid to equal Margaret Court's record of 24 major crowns.

While that record is again on her mind, Williams – who will face Laura Siegemund in the first round – said she was now more relaxed about it.

"It's definitely on my shoulders and on my mind. I think it's good to be on my mind," she said.

"I think it's a different burden, I should say, on my shoulders because I'm used to it now. It's more relaxing I would like to say, yeah."

Kevin Durant left the Brooklyn Nets' clash against the Toronto Raptors in the third quarter due to the NBA's health and safety protocols.

Durant exited Friday's game after a strange sequence of events, which saw him come off the bench for the first time in his career.

The 2014 NBA MVP was initially named to start but was later removed from the lineup.

Durant was then cleared to enter the game late in the first quarter, with ESPN reporting he had gone through contact tracing.

But his outing ended in the third quarter, again due to COVID-19 protocols.

"Free me," Durant tweeted.

Durant had eight points, six rebounds and five assists in his 19 minutes on the court.

"It's tough to lose Kevin Durant twice in one night," Nets head coach Steve Nash told ESPN.

"It wasn't easy but we've got to be adaptable, this is the type of season it's going to be, we have a lot going on in our world. We've got a lot of guys who can step up."

Sofia Kenin insisted her leg injury was improving as she prepares for her Australian Open title defence.

In a rematch of last year's Australian Open decider, Kenin was crushed 6-2 6-2 by Garbine Muguruza in the Yarra Valley Classic quarter-finals on Friday.

Kenin, 22, said she struggled with a leg injury which she hopes will not affect her at Melbourne Park, where the year's first grand slam begins on Monday.

"It was my left groin and my left glute, it was completely sore," the American told a news conference on Saturday.

"I think I was rolling a lot yesterday. Even before the match I rolled probably like an hour before they even finished. I was just rolling with the Theragun. It kind of got better, but it wasn't the best. She obviously played well."

Kenin, who will face Maddison Inglis in the Australian Open first round, added: "It's better, which I don't understand. From a match, now today it's better. Thank God. Obviously I'm not going to complain about that. I want it to be better for AO."

The defending champion's injury worry is just the latest ahead of the Australian Open, with Serena Williams, Naomi Osaka and Victoria Azarenka among those withdrawing from lead-up tournaments.

Kenin believes quarantine ahead of events had an impact, as well as long lay-offs.

"People who haven't played matches for two weeks, it's obviously not the same. Everyone is using this tournament to prepare for Australian Open," she said.

"Obviously you can see that being in a room for two weeks, not playing, practising, it's not the same as playing a match clearly. After two matches, my leg is completely sore. 

"Yeah, it's obviously different. But everyone's obviously going to be ready for Australian Open, for sure."

Kevin Durant came off the bench for the first time in his NBA career after missing the start of the Brooklyn Nets' clash against the Toronto Raptors due to health and safety protocols.

Durant was initially named to start on Friday, but was later removed from the lineup due to the protocols.

ESPN reported the 2014 NBA MVP was going through contact tracing, and Durant ended up entering the game late in the first quarter.

After 866 NBA starts, it marked the first time he had come off the bench.

The Nets trailed 34-23 after the first quarter against the Raptors.

Ole Gunnar Solskjaer believes Paul Pogba is happy at Manchester United and said an "open dialogue" remained over a possible extension.

The France international's future has been a constant talking point amid links with Real Madrid and a possible return to Juventus.

Pogba, 27, is contracted at United until 2022, but his agent Mino Raiola said late last year the midfielder was unhappy at Old Trafford and had to leave.

United manager Solskjaer said Pogba was happy at United and suggested a fresh deal was possible.

"We've got a good open dialogue with Paul so what we talk about and how we see that situation remains between us," he told reporters.

"I'm just happy he's focused and playing really well. He's happy within himself and that's important. You can see Paul enjoying football himself with a red shirt on.

"Our conversations remain private, of course. But for example, Paul is a Manchester United player through and through. He's been here in two spells. He came as a kid, he's learnt about the history of the club, the passion of the club.

"He wants to do the best for United when he's here and I think we've seen that – that he really cares for his team and he's trying to be as successful as everyone else."

While some of Pogba's passing numbers are down, his possession won in final third (0.8 per 90 minutes) and interceptions (1.2) in the Premier League are at their highest since he returned to United in 2016.

Pogba also scored match-winners against Burnley and Fulham last month and Solskjaer praised the midfielder's recent performances.

"The answer is Paul has really knuckled down, he's worked hard, he's got his fitness," he said.

"I have said this many a time he had a bad season last season with injuries and he had COVID this season and an injury, but he really works hard and is playing in a team that plays well and he's a big inspiration for everyone."

United can move level on points with Premier League leaders and rivals Manchester City with a win over Everton on Saturday.

Naomi Osaka and Victoria Azarenka withdrew from their respective tournaments on Saturday due to injuries.

Osaka, a three-time grand slam champion, opted out of her Gippsland Trophy semi-final against Elise Mertens.

Azarenka, meanwhile, was due to face Anett Kontaveit in the Grampians Trophy quarter-finals.

Osaka said her move was a cautious one ahead of the Australian Open, which begins on Monday.

"Sorry to Tennis Australia and the fans to have to withdraw today," she said, via the WTA.

"I have a niggling injury and in light of the Australian Open on the horizon, I need to be cautious. I look forward to competing next week."

It continues what has been a difficult build-up to the first grand slam of the year.

On Friday, Serena Williams withdrew from her semi-final at the Yarra Valley Classic due to a right shoulder injury.

It comes amid a busy schedule for players after Thursday's action was called off due to a coronavirus scare.

Inter assistant coach Cristian Stellini has challenged Nicolo Barella to take the next step in his career by adding more goals to his game after scoring in Friday's 2-0 win at Fiorentina.

The Italy international curled in a delightful opener after 31 minutes at Stadio Artemio Franchi and Ivan Perisic added a second as Inter moved top of Serie A.

Barella, who was earlier denied by a fine Bartlomiej Dragowski save, now has three goals and five assists in 21 league outings this term.

That makes 2020-21 the midfielder's best Serie A season in terms of goal involvements, though he did net six times for Cagliari in the 2017-18 season.

Stellini, who was filling in for suspended head coach Antonio Conte against Fiorentina, hopes to see Barella build on those figures in the remainder of the season.

"He is still growing, like Lautaro [Martinez] and many other young players in the squad," he told Sky Sport Italia. "The next step is a few more goals."

Barella's two other goals this season came from inside the penalty area, the 23-year-old having converted just one of his four Opta-defined big chances.

"I was missing them before, but now the goals are starting to come," Barella said. "Today I could have done better, but I am putting myself in good positions."

Perisic also impressed in the routine victory in Florence before leaving the pitch with a knock 10 minutes from time.

The 32-year-old, linked with an exit in January, was on target for just the second time in 19 league outings this term and Stellini was impressed with the winger's display.

"He adapts well and sacrifices a lot," Stellini said. "Before he was a protagonist in the opposition's half, while today he also helped at the other end.

"He is a precious player for us because he is very physical and can cover the whole wing very well. We are convinced and satisfied with what he is doing."

Victory for Inter was their first away at Fiorentina in the league in seven attempts since 2014 and marked the first time they have won successive Serie A matches in 2021.

The Nerazzurri, beaten 2-1 by Juventus in the first leg of their Coppa Italia semi-final earlier this week, are now a point above Milan ahead of their bitter rivals' game in hand against bottom side Crotone on Sunday.

Romelu Lukaku wasted a couple of opportunities and had a goal ruled out, while Dragowski produced four saves in total, but Stellini had no complaints with his side's profligacy.

"We are satisfied with the chances created," he said. "Our forwards have worked well in partnerships, creating several opportunities to score.

"Our players are very generous and sometimes can lose control, but today they were tidy and precise. It wasn't easy so I congratulate the team.

"We don't think about other sides, only our own path. After the game three days ago, it was not easy to come here on a difficult surface."

Fiorentina had won their previous two home league matches and were unfortunate not to be on level terms at half-time as Giacomo Bonaventura struck the crossbar.

However, head coach Cesare Prandelli accepted that his side were second best and did not deserve anything from the game.

"We reacted well to Inter's goal but then opened ourselves up too much," he said. "They were superior to us, but I don't blame my players for anything.

"When you face a team with players that Inter have, who punish you with speed, it can be hard. It's sometimes easier to just give credit to your opponent."

Leon Goretzka and Javi Martinez were not part of the Bayern Munich squad that departed for the Club World Cup on Friday.

Bayern caught a flight to Qatar after their 1-0 victory over Hertha Berlin, which was secured by a deflected first-half strike from Kingsley Coman.

Hansi Flick's side kept a clean sheet thanks to Manuel Neuer's seven saves but they looked vulnerable on the counterattack with Joshua Kimmich anchoring the midfield alone at the Olympiastadion.

Goretzka and Martinez were absent following positive coronavirus tests and they did not travel to Doha with their team-mates.

"We have to look from day to day how things are going for both of them," Flick said.

"Leon is looking a little better, Javi will probably not make it. If not for the first game, then maybe for the second."

Bayern take on Al Ahly on Monday and will contest either the third-place play-off or the final against Palmeiras or Tigres UANL three days later.

The European champions left Germany after opening a 10-point advantage at the Bundesliga summit, though a missed penalty from Robert Lewandowski in the first half against Hertha meant the match was tighter than expected.

"You could tell it would be fiercely contested. Pal Dardai's team fight for every square centimetre," Thomas Muller, who set up Coman to become the first player to reach double figures for goals and assists in the Bundesliga this season, told DAZN.

"We should definitely have scored one or two more goals, so it was a close run thing in the end.

"You can't celebrate in every game. What is striking is that the clean sheet is becoming more and more common."