US Open champion Emma Raducanu suffered the heaviest defeat of her professional career at the hands of Elena Rybakina at the Sydney Tennis Classic.

The ninth seed needed just 55 minutes to storm to a 6-0 6-1 victory to set up a meeting with Caroline Garcia in round two.

This was only Raducanu's eighth appearance in a WTA main draw and the 19-year old had not played since November having contracted COVID-19 and then withdrawn from the Melbourne Summer Set last week.

Rybakina lost only 11 points on serve in the match, sending down four aces. Raducanu, by contrast, struggled badly: the Briton gave up six double faults and won just two points behind her second serve.

"My serve is a weapon, so I'm always working on it and trying to find some variety," said Rybakina. "For sure, it's my game to play aggressive and my serve is helping a lot."

Elsewhere in Sydney, Olympic gold medallist Belinda Bencic beat Beatriz Haddad Maia 6-3 6-2 in her first match of the year and will now face France's Oceane Dodin.

Home favourite Ajla Tomljanovic defeated Anna Karolina Schmiedlova in straight sets, while world number 20 Elise Mertens also progressed.

At the Adelaide International 2, Coco Gauff looked in strong form as she dispatched Katerina Siniakova 6-1 6-2, while fellow seed Tamara Zidansek beat Heather Watson in a three-set battle.

There was a shock for top seed Aryna Sabalenka, though, as she fell 5-7 6-1 7-5 to Sweden's Rebecca Peterson, who celebrated her first win over a top-five player, while American Lauren Davis beat seventh seed Jil Teichmann in three sets.

Ninth seed Sorana Cirstea lost in straight sets to Anhelina Kalinina, but eighth seed Liudmila Samsonova beat Mayar Sherif.

Andy Murray swept through his opening test at the Sydney Classic as the wildcard grabbed his first win of the year.

Murray sped to a 6-3 6-1 victory over Norwegian Viktor Durasovic, a player ranked a lowly 345th by the ATP who won through two qualifying rounds to reach the main draw.

The Scot broke four times across the contest and won 25 of 26 points when landing a first serve, an encouraging rate. Realistically, anything other than a comfortable win for the former world number one would have been concerning ahead of the Australian Open.

Murray at least put last week's disappointing first-round loss to Facundo Bagnis at the Melbourne Summer Set tournament behind him, and now a stiff tests await him in the last-16 stage.

Georgian second seed Nikoloz Basilashvili is next for Murray on Wednesday, with the world number 23 a familiar foe after these two met in the first round at Wimbledon last July.

On that occasion, Murray won in four sets following a desperate wobble in the third, which he lost from 5-0 ahead.

Five times an Australian Open finalist, Murray believes limbering up this week in Sydney can set him up well for the season's first grand slam.

"It is perfect conditions here," Murray said. "It feels like you are playing indoors. It is really nice to get your range here, and hopefully I can carry that through to Melbourne.

"I was hoping to get matches in Melbourne last week, but that didn't happen. Thankfully the tournament organisers and Tennis Australia agreed to give me the wildcard and the opportunity to play here, and I am very grateful for that."

Tuesday also saw a win for Maxime Cressy, the American serve-volleyer who caused a stir with his run to last week's final in Melbourne before pushing eventual champion Rafael Nadal in the title match.

Cressy, who was born in Paris, is a throwback in an era dominated by baseliners, and his game again came good as he saw off Adrian Mannarino 6-3 7-5. Dusan Lajovic awaits him in round two after the Serbian beat Spain's Alejandro Davidovich Fokina 7-6 (7-5) 6-4.

At the Adelaide International 2 tournament, South African fifth seed Lloyd Harris made a first-round exit, losing 5-7 7-5 6-4 to Soonwoo Kwon.

There was another positive performance from Adelaide's own Thanasi Kokkinakis, who swatted away Frenchman Benoit Paire 6-4 6-0 to tee up a second-round shot at American second seed John Isner.

Kokkinakis, a once-bright young prospect who is finding his way again on tour after injury trouble, reached the semi-finals of last week's Adelaide tournament and is eyeing another run in South Australia before heading to Melbourne.

"After a good run last week, I was pretty knackered – I'm not going to lie," Kokkinakis said, quoted in The Australian. "But I thought another one in my hometown was a perfect situation.

"It was kind of a win-win for me almost. If I won, perfect, I get more matches. If not, I get to Melbourne and get to prepare for Aussie Open, but I'm stoked with the win."

Australia's Immigration Minister will "thoroughly consider" Novak Djokovic's visa status after fresh concerns were raised over his whereabouts in the two weeks prior to arriving in the country.

Djokovic is alleged to have falsely declared he had not travelled in the 14 days prior to his flight to Melbourne in the Australian Travel Declaration form which is a "serious offence".

The world number one flew from Spain to Australia via Dubai but was seen on social media in the 14 days prior to his arrival in his native Serbia with handball player Petar Djordjic.

Djokovic, who trained at Melbourne Park on Tuesday, was released from detention on Monday after winning his appeal and having his visa reinstated.

However, Immigration Minister Alex Hawke said in a statement on Tuesday that he will investigate the claims of Djokovic's false declaration.

“In line with due process, Minister Hawke will thoroughly consider the matter,” a representative said.

Mr Hawke has the power to cancel Djokovic's visa, which would force his deportation ahead of the Australian Open which is due to commence on January 17.

On Monday, Djokovic posted to Instagram: “I’m pleased and grateful that the Judge overturned my visa cancellation. Despite all that has happened, I want to stay and try to compete @AustralianOpen I remain focused on that.

“I flew here to play at one of the most important events we have in front of the amazing fans.”

The ATP has welcomed the outcome of the hearing that will allow Novak Djokovic to play at the Australian Open but reiterated that it continues to encourage its players to get vaccinated against coronavirus.

After days of uncertainty regarding the world number one's participation in Melbourne, it was ruled on Monday he should be immediately released from detention.

That came after authorities cancelled his visa last week, despite the Serbian receiving a medical exemption that allowed him to enter the country, regardless of his vaccination status. Given his application for the exemption, it is assumed Djokovic is unvaccinated.

The Australian Border Force declared Djokovic must fly out of the country on Thursday, sparking the challenge that went in the tennis star's favour on Monday.

However, Australia's immigration minister Alex Hawke could still cancel Djokovic's visa on new grounds, meaning his participation at the year's first grand slam is not yet 100 per cent known.

With the saga seemingly drawing to a close, the ATP published a response to Monday's events.

Its statement read: "The ATP fully respects the sacrifices the people of Australia have made since the onset of COVID-19 and the stringent immigration policies that have been put in place. Complications in recent days related to player entry into Australia have however highlighted the need for clearer understanding, communication and application of the rules.

"In travelling to Melbourne, it's clear Novak Djokovic believed he had been granted a necessary medical exemption in order to comply with entry regulations.

"The series of events leading to Monday's court hearing have been damaging on all fronts, including for Novak's well-being and preparation for the Australian Open. Player medical exemption requests are made independently of the ATP, however, we have been in constant contact with Tennis Australia to seek clarity throughout this process. We welcome the outcome of Monday's hearing and look forward to an exciting few weeks of tennis ahead.

"More broadly, the ATP continues to strongly recommend vaccination for all players on the ATP Tour, which we believe is essential for our sport to navigate the pandemic. This is based on scientific evidence supporting the health benefits provided and to comply with global travel regulations, which we anticipate will become stricter over time. We are encouraged that 97 per cent of the Top 100 players are vaccinated leading into this year's Australian Open."

Novak Djokovic is "pleased and grateful" after winning his court battle to stay in Australia and is focused on defending his title at the first grand slam of the year.

Following days of uncertainty regarding the world number one's participation at the Australian Open, it was ruled on Monday he should be immediately released from detention.

That came after authorities cancelled his visa last week, despite the Serbian being granted a medical exemption that allowed him to enter the country, regardless of his vaccination status.

The Australian Border Force declared Djokovic must fly out of the country on Thursday, sparking the challenge that went in the tennis star's favour on Monday.

However, Australia's immigration minister Alex Hawke could still cancel Djokovic's visa on new grounds, meaning his Australian Open participation is not yet 100 per cent known.

But speaking about the saga for the first time on Monday, Djokovic said he remains hopeful of competing at Melbourne Park next week.

"I'm pleased and grateful that the Judge overturned my visa cancellation," he posted on his personal Twitter account. 

"Despite all that has happened, I want to stay and try to compete at the Australian Open. I remain focused on that. 

"I flew here to play at one of the most important events we have in front of the amazing fans."

In a follow-up tweet to his 8.9 million followers, Djokovic added: "For now I cannot say more but THANK YOU all for standing with me through all this and encouraging me to stay strong."

Twenty-time grand slam winner Djokovic posted the message at the same time that his family were holding a news conference in Belgrade, which he was expected to join via video link.

Djokovic's brother Djordje confirmed that the 34-year-old has already returned to the practice court ahead of the Australian Open, which he has won a record nine times.

After spending the weekend at a detention hotel in Melbourne as he attempted to defeat the deportation order, Djokovic's mother Dijana accused the local authorities of subjecting her son "to torture and harassment".

Dijana added: "This is his biggest win in his career – bigger than any grand slam."

Djokovic's father Srdjan praised the mental strength of his son and put Monday's verdict down as a victory for a wider cause.

"Over the past few days, it's been very, very difficult for everyone in the world who is free thinking. But he is mentally extremely, extremely strong," he said.

"They took away all his rights, as a human being. He refused to revoke his visa. They gave him no right to prepare his defence for several hours, and they took away his phone. 

"Fortunately they gave him back his phone. He contacted his legal team who mounted a fantastic defence, that they could not match.

"This is a huge win for Novak, his family and the free world. He respected everything that was asked of him. He only wanted to go there to play tennis.

"Justice and the rule of law have prevailed. The judge who presided over the case has shown that not for a second was Novak the guilty party. 

"The judge was fantastic, he simply respected the facts. He took the only decision that was possible which was to release Novak."

Ons Jabeur made an impressive start to 2022 with a routine win over Astra Sharma at the Sydney Tennis Classic.

Last year's Wimbledon quarter-finalist needed less than an hour to win 6-1 6-3 in her first match of the year and set up a meeting with Petra Kvitova, who has won all three of their previous contests.

There was also a strong performance from Daria Kasatkina, who defeated eighth seed Sofia Kenin 6-4 6-0 to progress.

Fourth seed Anett Kontaveit overcame Shuai Zhang 6-3 6-3 while fifth seed Paula Badosa was a straight-sets winner against 2017 French Open champion Jelena Ostapenko.

There was a surprise at the Adelaide International 2 as second seed Elina Svitolina was undone by the brutal serving of Madison Keys.

The American sent down 14 aces and won all but five points on her first serve to triumph 6-2 6-4.

Compatriot Alison Riske also progressed, beating Magda Linette 6-4 6-4, but Shelby Rogers lost to Marta Kostyuk.

Marketa Vondrousova, who had not played since losing in the Kremlin Cup semi-finals to Kontaveit in October, came from a set down to beat Viktorija Golubic.

The fifth seed battled through 5-7 6-4 6-3 in just under two and a half hours and will now face Ana Konjuh in the last 16.

Nick Kyrgios pulled out of the Sydney Tennis Classic due to testing positive for coronavirus shortly before he was due to face Italy's Fabio Fognini.

The Australian had been one of the tournament's major draws as the home favourite but now cannot compete and that has subsequently thrown his Australian Open participation into question.

Fognini took full advantage of the situation as he saw off lucky loser Daniel Altmaier 6-3 7-5 to move into the second round.

There he will be joined by – among others – David Goffin, with the Belgian winning a game for the first time in eight months as he beat Facundo Bagnis 6-4 6-4 after an injury-ravaged 2021.

Fifth-seed Lorenzo Sonego was the highest seed in action and he was made to work hard for his 3-6 6-3 7-5 win over Hugo Gaston, needing almost two hours and 45 minutes to get the job done.

The day's other game saw Jordan Thompson win on home soil, beating Marcos Giron fairly comfortably 6-4 6-2.

At the Adelaide International 2, Tommy Paul came out on top in the battle of the Americans as he cruised to an impressive 6-2 6-3 win over Frances Tiafoe in just 69 minutes.

Local boy Aleksandar Vukic clinched the biggest scalp of his professional career as the world number 156 – a wild card entry for the tournament – beat Alexander Bublik 7-6 (7-5) 6-2.

Arthur Rinderknech and Jaume Munar also progressed, the latter defeating Australia's John Millman.

Nick Kyrgios is a doubt to take part at the Australian Open after testing positive for COVID-19.

The Australian star withdrew from the Sydney Tennis Classic hours before he was due to face Fabio Fognini.

The 26-year-old had already pulled out of the Melbourne Summer Set last week after struggling with an unknown illness that affected his asthma.

He was tested for coronavirus but all had come back negative until Monday.

With the first grand slam of 2022 just one week away, Kyrgios hopes he will recover in time to enter the draw.

"Hey everyone, I just want to be open and transparent with everyone, the reason I have had to pull out of Sydney is because I tested positive for Covid," he wrote on Instagram.

"I am feeling healthy at the moment with no symptoms. I wish everyone all the best and to stay safe where you can.

"If all goes well I will see you all at the Australian Open."

Kyrgios has not played a singles match since losing to Stefanos Tsitsipas at the Laver Cup last September and has dropped to 114 in the world rankings.

The former world number 13, who lost a thrilling five-set match with Dominic Thiem in the round of 32 in Melbourne last year, has only once gone as far as the quarter-finals at his home grand slam.

He reached the last eight in 2015, where he lost in straight sets to beaten finalist Andy Murray.

Rafael Nadal joked that he would rather Novak Djokovic does not play at the upcoming Australian Open after the world number one won his appeal to remain in the country.

Djokovic was left fighting for the right to compete at the opening grand slam of the year, a tournament he has won nine times, after authorities cancelled his visa last week.

A medical exemption was expected to allow the Serbian to enter the country, regardless of his vaccination status, which he has yet to formally disclose.

But the Australian Border Force declared Djokovic had been ordered to fly out of the country on Thursday, sparking a challenge to that decision by the tennis star's legal team.

After both sides had presented their cases, Djokovic was handed an Australian Open lifeline on Monday when defeating a deportation order brought by Australia's government

Judge Anthony Kelly ruled at Melbourne Circuit Court that Djokovic's visa cancellation order should be "quashed" immediately.

There may yet be another twist in the saga, though, as Australia's immigration minister Alex Hawke could still cancel the 34-year-old's visa on new grounds.

Djokovic now appears far more likely to defend his Australian Open crown than he did over the weekend, however, as he goes in search of a 21st major title.

While that will inevitably make Nadal's chances of success at Melbourne Park a whole lot tougher, the Spaniard said the decision to grant Djokovic's freedom must be respected.

"Whether or not I agree with Djokovic on some things, justice has spoken and has said that he has the right to participate in the Australian Open," he told Onda Cero.

"I think it is the fairest decision to do so, if it has been resolved that way. I wish him the best of luck.

"But on a personal level, I'd much rather he didn't play!"

Nadal described Djokovic's COVID-19 vaccination controversy "a circus" and reiterated that the vaccine "is the way to stop this pandemic and disaster".

The 35-year-old ramped up his preparations for the Australian Open by winning last week's Melbourne Summer Set without dropping a single set.

That was Nadal's first tournament in five months due to injury and means he has won at least one ATP Tour trophy in every season since 2004 onwards.

He is level with Djokovic and fellow great Roger Federer on 20 grand slam titles, with the trio locked in a race to finish with the most majors.

Novak Djokovic has sensationally been handed an Australian Open lifeline by a Melbourne court.

The men's tennis world number one secured his freedom, defeating a deportation order brought by Australia's government.

The Serbian secured an injunction against immediate deportation on Thursday and spent the weekend at a detention hotel.

Ahead of the Australian Open, where he has won the men's singles title a record nine times, including last year, Djokovic arrived in the country with what he insisted were the correct documents.

Yet Australian Border Force officials cancelled his visa application, stating Djokovic had "failed to provide appropriate evidence to meet the entry requirements to Australia".

Lawyers for the 34-year-old stated he was granted a temporary activity visa on November 18.

The legal team said he was granted a medical exemption for the first grand slam of the year after a COVID-19 positive test on December 16, and was later given the go-ahead by Australia's Department of Home Affairs to travel.

However, lawyers for the government issued their own court filing on Sunday, disputing Djokovic's right to come to Australia.

"There is no suggestion that the applicant had 'acute major medical illness' in December 2021," said the government filing. "All he has said is that he tested positive for COVID-19. This is not the same."

The issue has become a political hot topic in Australia, with Djokovic's stance on COVID-19 matters rankling with many, particularly in the state of Victoria, who have faced hard lockdowns during the pandemic.

The case was listed as Novak Djokovic v Minister for Home Affairs. That is Karen Andrews; however, the matter has been one in which prime minister Scott Morrison has also become a central figure, insisting when Djokovic's visa was revoked: "Rules are rules, especially when it comes to our borders. No one is above these rules."

Djokovic has declined to confirm his vaccination status, but by requiring an exemption to compete at Melbourne Park it has been widely assumed he has not been jabbed. The government filing on Sunday stated it was "common ground that the applicant is unvaccinated".

His case was heard at Melbourne's Federal Circuit Court on Monday, with Judge Anthony Kelly ruling that the Serbian's visa cancellation order is "quashed" immediately.

This means Djokovic's visa is now valid and he can enter Australia ahead of the Australian Open getting underway in a week's time.

Tournament director Craig Tiley had said ahead of the hearing that he hoped Djokovic would be cleared to play and defend his title.

The drawn-out saga may not be entirely over just yet, however, as government lawyer Chris Tran indicated Australia's immigration minister – who has exceptional powers – may consider cancelling Djokovic's visa again.

Novak Djokovic has sensationally been handed an Australian Open lifeline by a Melbourne court.

Novak Djokovic faced a crunch day as his lawyers fought to win his freedom to play at the Australian Open – but the failure of a live court stream left the world in the dark about what was being disclosed.

Djokovic's case went before Melbourne's Federal Circuit Court on Monday, with the world number one attempting to defeat a deportation order brought by Australia's federal government.

Video footage of proceedings was promised by court officials, with huge global interest in the case, but at the scheduled hearing start time of 10am the website platform had crashed.

With the stream unavailable, the hearing was initially said by court officials to have been delayed, before word came through shortly after 10.30am in Melbourne that it had begun.

Serbian superstar Djokovic secured an injunction against immediate deportation on Thursday and spent the weekend at a detention hotel.

Ahead of the Australian Open, where he has won the men's singles title a record nine times, including last year, Djokovic arrived in the country with what he insisted were the correct documents.

Yet Australian Border Force officials cancelled his visa application, stating Djokovic had "failed to provide appropriate evidence to meet the entry requirements to Australia".

Lawyers for the 34-year-old have since stated the Serbian was granted a temporary activity visa on November 18. Djokovic's legal team said he was granted a medical exemption for the first grand slam of the year after a COVID-19 positive test on December 16, and that he was later given the go-ahead by Australia's Department of Home Affairs to travel.

However, lawyers for the federal government submitted their own court filing on Sunday, disputing Djokovic's right to come to Australia.

"There is no suggestion that the applicant had 'acute major medical illness' in December 2021," said the government filing. "All he has said is that he tested positive for COVID-19. This is not the same."

The government document also stated that, should the hearing ruling go in Djokovic's favour, it must be expressly stated that he could not be re-detained or have his visa cancelled once again. Otherwise, he could be denied entry to the country once more.

The issue has become a political hot topic in Australia, with Djokovic's stance on COVID-19 matters rankling with many, particularly in the state of Victoria, who have faced hard lockdowns during the pandemic.

The case was listed as Novak Djokovic v Minister for Home Affairs. That minister is Karen Andrews; however, the matter has been onee in which prime minister Scott Morrison has also become a central figure, insisting when Djokovic's visa was revoked: "Rules are rules, especially when it comes to our borders. No one is above these rules."

Djokovic has declined to confirm his vaccination status, but by requiring an exemption to compete at Melbourne Park it has been widely assumed he has not been jabbed. The government filing on Sunday stated it was "common ground that the applicant is unvaccinated".

Judge Anthony Kelly turned down a government request to delay the hearing by two days until Wednesday.

Australian Open tournament director Craig Tiley said ahead of the hearing that he hoped Djokovic would be cleared to play.

The Australian government has suggested it will block Novak Djokovic's entry into the country even if the world number one wins his appeal against their decision to cancel his visa.

Djokovic, who has not revealed his COVID-19 vaccination status, seemed set to compete in the Australian Open under a medical exemption.

Yet he is currently in an immigration detention hotel awaiting a hearing on Monday, after Australian border forces refused to allow him entry.

Court papers filed by Djokovic's representatives on Saturday stated that the 34-year-old had been given the medical exemption after testing positive for COVID-19 on December 16. 

The Serbian's lawyers also claimed they had an assessment from the Australian Department of Home Affairs which stated that his responses on his Traveller Declaration form met the requirements for quarantine-free travel into Australia.

Australia's government responded by filing court papers of its own on Sunday.

The 13-page document not only challenged the claim that Djokovic had COVID-19 last month, but also indicated the government would still refuse the nine-time Australian Open champion entry into the nation even if the hearing was decided in the player's favour.

The document claimed the government "had not represented to the applicant that his so-called 'medical exemption' would be accepted."

Australia's government also argued that: "There is no suggestion that the applicant had 'acute major medical illness' in December 2021. All he has said is that he tested positive for COVID-19.

"That is not the same. Thus the ATAGI Vaccination Advice uses different terms, such as mere "past infection" and also "symptomatic infection"."

The document goes on to conclude that, should the hearing be ruled in Djokovic's favour, it must be expressly stated that he could not be re-detained or have his visa cancelled once again.

"If this Court were to make orders in the applicant's [Djokovic] favour, it would then be for the respondent [Australian government] to administer the Act in accordance with law.

"That may involve the delegate deciding whether to make another cancellation decision, but there are also other powers in the Act, as the Court would be aware. Or, indeed, no power may be exercised.

"It is sufficient for the Court to quash the decision. From the time those orders are made, the respondent will act on the basis that the applicant's visa has not been cancelled.

"If the Court makes an additional orders for immediate release of the applicant, notwithstanding the above, the respondent submits that the Court should make it expressly clear that that order does not purport to (nor could it) prevent the respondent or any officer of the Commonwealth from exercising any power to detain that might be available to him or her despite the quashing of the delegate's cancellation decision.

"An order for immediate release does not prevent re-detention if there is power to detain."

Denis Shapovalov and Felix Auger-Aliassime clinched a maiden ATP Cup crown for Canada with victories over Spain's Pablo Carreno Busta and Roberto Bautista Agut in Sunday's final.

Canada lost their opening four matches of the competition but recovered in style to reach a first final, which they won 2-0 with a couple of commanding straight-sets wins in the singles matches.

Shapovalov saw off Carreno Busta 6-4 6-3 in the opening singles rubber to give Canada, who had to rely on other results to avoid elimination earlier in the tournament, the lead in Sydney.

World number 11 Auger-Aliassime followed that up with a 7-6 (7-3) 6-3 victory against Bautista Agut to give Canada an unassailable 2-0 lead, meaning that there was no need for a doubles decider.

"The emotions are unbelievable. There's no better feeling than winning," Auger-Aliassime, who saved 10 of the 11 break points he faced, said in his on-court interview. "We left everything out there. 

"We came back from far in this competition, losing our first four matches. But we never stopped believing. I think that's very important. We trust each other to the highest level.

"It came down to the perfect result. I'm super thrilled for everybody in the whole team and myself, of course."

Canada become the third nation to have lifted the trophy after Serbia, who beat Spain 2-1 in the 2020 final, and Russia in 2021.

Andy Murray believes Novak Djokovic's situation ahead of the Australian Open does not reflect well on anyone involved, nor the game of tennis in general.

Djokovic is currently in immigration detention at the Park Hotel in Melbourne.

The world number one, who has not revealed his COVID-19 vaccination status, received a medical exemption to feature in the Australian Open, which begins on January 17. He is the reigning champion and has won the tournament nine times.

All competitors at Melbourne Park must either be vaccinated or have a valid medical reason not to have had the vaccine. Australia, and Melbourne in particular, has had strict restrictions in place throughout the pandemic.

However, Djokovic's visa application was rejected by Australian border force officials. The Serbian star will now await the outcome of a hearing, set to take place on Monday, to determine whether he will be allowed to compete or be deported, with the Australian government losing an appeal to delay the hearing.

Murray, a five-time Australian Open finalist, cannot see how the situation looks good for anybody.

"I think everyone is shocked by it to be honest," former world number one Murray, who is preparing himself for the season's first grand slam, told reporters, as quoted by Australian publication The Age.

"I'm going to say two things on it just now. The first thing is that I hope that Novak is OK. I know him well, and I've always had a good relationship with him and I hope that he's OK.

"The second thing I'll say on it, is it's really not good for tennis at all, and I don't think it's good for anyone involved."

Four of Murray's five defeats in Australian Open finals came to Djokovic, who the Scot has not had contact with.

"[I need to] wait and hear exactly what the situation is before commenting on it further, because again I don't think it's fair because some of it is speculation," Murray said.

"Some stuff has come out that really doesn't look good, either. I want to hear all the facts first before giving all of my thoughts on it."

Djokovic's lawyers, in their appeal document sent to the court, disclosed that the 34-year-old had tested positive for COVID-19 in December, and it was under these grounds that they sought a medical exemption.

Rafael Nadal said this week that Djokovic could have made life easier for himself by getting vaccinated, or disclosing his vaccine status, and Murray echoed those sentiments.

"It's not for [Nadal] to say what the right thing to do is, but to listen to the experts on those subjects, and I feel the same," Murray added.

"I can accept that young healthy athletes, if you contract coronavirus, are probably going to be OK. But I trust what I'm getting told by the scientists and the doctors.

"It's not about listening to what politicians or government are telling me to do, it's more listening to the doctors and the scientists, and the people that really know about that stuff."