Australian Open chief executive Craig Tiley will not stand down from his position over the handling of the Novak Djokovic case and has refuted claims that Tennis Australia funded the world number one's legal expenses.

Tiley was speaking after the Federal Court published the written reasons for rejecting Djokovic's appeal to remain in Australia, stating it was "plainly open" to Immigration Minister Alex Hawke that the reigning Australian Open champion was opposed to a COVID-19 vaccination.

Djokovic failed in his second bid to overturn a decision from the government to cancel his visa on public health grounds at the Federal Court in Melbourne on Sunday, a day before the Australian Open started.

The 20-time grand slam winner arrived back in Belgrade on Monday, bringing an end to a saga that began after he was held at an airport in Melbourne on January 6 due to his travel declaration form containing incorrect information.

It was reported this week that Tennis Australia covered all of Djokovic's legal fees, but Tiley – who was jeered by spectators on Thursday while on-court to present flowers to the retiring Samantha Stosur – denied that was the case.

"I have seen those reports and we don't really go into the detail of financial arrangements we have with players," he told Channel 9. "But those reports are simply untrue."

Asked if he intended to step aside as chief executive due to the perceived mishandling of the saga, Tiley replied "no" before turning focus to the remainder of the tournament.

"I am very focused today on delivering a great event," he said.

"I am proud of being able to stand up here and you can see what is behind us. I am proud of what the team has done and what we have delivered so far."

Djokovic won his first appeal to avoid deportation from Australia, but Hawke used separate powers to again cancel the 34-year-old's visa.

That decision was taken amid much backlash in Australia and was upheld unanimously by three judges of the Federal Court's full bench.

Four days on from that verdict, which denied Djokovic the chance to win a record-extending 10th Australian Open crown, Chief Justice James Allsop delivered the court's reasons for rejecting the challenge.

It was found that it was reasonable for Hawke to be concerned by Djokovic's high-profile presence in the country as it "may encourage rallies and protests that may lead to heightened community transmission."

"An iconic tennis star may influence people of all ages, young or old, but perhaps especially the young and the impressionable, to emulate him," Allsop added in his report.

"This is not fanciful; it does not need evidence.

"Even if Mr Djokovic did not win the Australian Open, the capacity of his presence in Australia playing tennis to encourage those who would emulate or wish to be like him is a rational foundation for the view that he might foster anti-vaccination sentiment.

"I consider that behaviour by influential persons and role models, which demonstrates a failure to comply with, or a disregard of, public health measures has the potential to undermine the efficacy and consistency of the Australian Government’s and State and Territory Governments' management of the evolving COVID-19 pandemic.

"Mr Djokovic is such a person of influence and status. Having regard to the matters set out above regarding Mr Djokovic's conduct after receiving a positive COVID-19 result, his publicly stated views, as well as his unvaccinated status, I consider that his ongoing presence in Australia may pose a risk to the good order of the Australian community."

An Olympic gold medal would be most athletes' prized possession, but Alexander Zverev's ownership has perhaps been a little more carefree – or it was until he found himself wondering if his brother had sold it on eBay.

Zverev claimed arguably the biggest title of his career last year when claiming gold in Tokyo, adding that to his 2018 ATP Finals success – he went on to repeat that triumph at the year-end tournament in Turin.

The German beat Novak Djokovic in the semi-finals at the Olympics before going on to defeat Karen Khachanov in straight sets to win the tournament.

That made him the first German man to win a gold in the singles and first to win any medal since Tommy Haas got silver 21 years earlier.

While some might tend to their gold medal on a daily basis, polishing it generously as it takes pride of place on the mantelpiece, it turns out Zverev has not actually seen his for a while.

His older brother Mischa has had it for a few months, leaving the younger sibling not even sure if it is still in the family's possession.

After beating Australian's John Millman to reach the third round of the Australian Open, Zverev was asked where he keeps his gold medal, to which he replied: "That's actually a good question because my brother took it for a media appearance.

"He didn't give it back to me yet. I don't know where it is for the past five months. Hopefully he hasn't sold it on eBay or something."

Zverev will presumably be a little more attentive to any silverware he claims in Melbourne this year, with the 24-year-old still chasing his first major.

Seeded third this month, Zverev is certainly considered one of the favourites after an excellent 2021 in which he won six titles, more than anyone else on the ATP Tour.

Zverev was initially on course to meet Djokovic in the semis, but the Serbian's absence means many will consider him the favourite to reach the showpiece from his side of the draw and he has made a solid start.

After dispatching fellow German Daniel Altmaier, Zverev saw off the tricky Millman, a big-serving Australian who understandably had the crowd's backing on Rod Laver Arena, coming through both games in straight sets.

"My tactic today was to hit the ball as slow as possible," he said. "That was my mindset going into the match, but hopefully I can hit it even harder next match and harder the next match after that.

"I could really feel that you guys have been locked down for two years. I'm prepared that everybody will hate me after the match. It's quite accurate and that's my mindset.

"I'll get a lot of boos and hopefully everybody will cheer against me. I'm kidding."

Andy Murray knows it would have been easy to retire from tennis after his hip surgery but is instead revelling at being able to compete at the Australian Open once again.

Former world number one Murray is featuring in the season's first grand slam for the first time in three years.

In true Murray fashion, he overcame Georgian 21st-seed Nikoloz Basilashvili in five sets in a mammoth first-round tie to set up a clash with Japan's Taro Daniel on Thursday.

That Murray is here at all is remarkable given the scenes in 2019 when the now 34-year-old gave an emotional news conference following a first-round defeat to Roberto Bautista Agut questioning whether he would be able to continue playing.

Speaking about his Melbourne return, Murray told BBC Sport: "To be finally back at the Australian Open again this year, playing on the same court as 2019 and then beating Basilashvili in five sets, was a brilliant experience.

"In 2019 it didn't feel like it was me out there on the court. I was severely hampered physically and had little to no preparation. I didn't know if I was going to be able to play again.

"After the hip surgery, and loads of stops and starts with more niggles, playing in grand slams again is a place which I have worked so hard to get to.

"It would have been easy to stop playing, but I kept trying and trying. I'm proud of that work and effort."

Murray was unable to compete in Melbourne in 2021 after testing positive for COVID-19.

"There was another setback last year when I couldn't come to Australia because I tested positive for coronavirus shortly before I was supposed to fly out," he continued.

"That was brutal for me. I had trained really hard through the end of November and December, I was playing really well. I had played lots of practice, I felt really fit and then that positive test happened. I was gutted.

"I was healthy, I'd just had the virus and recovered from it. I understood the rules and situation here in Melbourne but I just wished I would have been able to play."

Murray reached the final of the Sydney Classic earlier in January, eventually going down to Alan Karatsev 6-3 6-3. It was just the second ATP Tour-level final he has reached since the start of 2019.

Now, the three-time major winner is hoping to push on after that morale-boosting success over Basilashvili.

"Beating Basilashvili was a big win for me," Murray added. "A lot of work has gone into getting back to this tournament and to physically compete at the highest level, so beating a guy ranked in the top 25 and winning a match in five sets was very satisfying.

"I'm probably never going to move as well as I did as I did when I was 25.

"But the more matches I play, staying healthy for a long period of time and not missing lots of training, means I am going to continue to improve my movement. Then, my physicality on the court will get better."

Rafael Nadal insisted he does not feel any significant pressure at the Australian Open as he goes in search of a record-breaking 21st grand slam singles title.

The Spaniard eased into the third round on Wednesday with a 6-2 6-3 6-4 over Yannick Hanfmann on Rod Laver Arena.

Nadal, who is now 16-0 in the second round of this event in his career, has enjoyed an encouraging return to action in 2022 following a foot injury.

The 35-year-old won the Melbourne Summer Set warm-up tournament, collecting his 89th title on the ATP Tour in the process, and is now 5-0 for the season.

With Novak Djokovic not involved, the prospect of Nadal winning a second Australian Open title – and a record 21st major overall – is very real.

None of Nadal's vanquished opponents this month are in the top 50 in the world, though, and he could face 28th seed Karen Khachanov in round three before a possible quarter-final against world number three Alexander Zverev.

Still, rather than worry about the matches to come, Nadal is simply enjoying being back on court and retuning his game.

"As I said here before the tournament started, things [are] not going to be perfect, but every day that I'm going to spend on court, the chances to play better are higher," he said.

"I think I am doing things well. Things that I can improve, I have to improve. I want to keep going in the tournament. But winning today allows me to practice again tomorrow, to be ready for another match. After two matches it's the moment to make a step forward. It's not going to be impossible. I'm going to try.

"I'm excited about it. I'm excited about the fact that I'm going to be playing in a third round for one more time here after all the things I am going through.

"I don't have big pressure on my shoulders, honestly. I don't feel it. The pressure is only to stay healthy and to enjoy the fact that I am competing again, then give my best as I did during all my tennis career."

Asked about the potential Zverev match-up, Nadal added: "I don't know. I am in the third round. I need to win very tough matches to be there. It is not in my mind now. I have enough work.

"I think playing against Khachanov now, probably Khachanov, [is] going to be a big challenge.

"I never think that far. You can imagine now less than ever, no? Just staying focused on my daily work, on what's coming, and that's it. One moment in time, that's it."

Rafael Nadal remains on track for a record-breaking 21st grand slam title after getting past Yannick Hanfmann at the Australian Open.

Nadal, bidding to become the outright record holder for the most majors won by a man, was too good for Hanfmann in a 6-2 6-3 6-4 victory in the second round on Wednesday.

The Spanish star had won his only previous meeting with the German – at the French Open in 2019 – and proved too strong on Rod Laver Arena.

Nadal will face either Russian 28th seed Karen Khachanov or Frenchman Benjamin Bonzi in the third round.

Hanfmann held his own early, but Nadal landed the first break in the sixth game, a backhand winner down the line followed by a volley to give him a 4-2 lead.

A break point went begging for Hanfmann in the next game and Nadal punished him, a tremendous backhand winner down the line clinching the set.

Just as the sixth game looked set to be Hanfmann's undoing again, the German saved a break point and held for 3-3.

But a pair of forehand winners would give Nadal a 5-3 lead on his way to taking the second set.

The contest looked over as Nadal broke for 2-1 in the third set when Hanfmann sent a forehand long to end a 22-shot rally.

And that proved to be the case, Nadal digging out of a 0-30 hole in the eighth game – and jumping in celebration – before closing out his win with another tough hold.

DATA SLAM: Nadal's second-round perfection in Melbourne intact

Nadal has never lost in the Australian Open second round.

He improved that record to 16-0 with the win over Hanfmann. Only once in his career has the 2009 champion bowed out before the third round in Melbourne – losing to Fernando Verdasco in his opener in 2016.

WINNERS/UNFORCED ERRORS
Nadal – 30/26
Hanfmann – 30/32

ACES/DOUBLE FAULTS
Nadal – 1/5
Hanfmann – 5/1

BREAK POINTS WON
Nadal – 4/16
Hanfmann – 0/2

Nick Kyrgios is box office whenever he plays – and the Australian Open gets a first-week gift in the form of a second-round blockbuster against Daniil Medvedev.

Kyrgios still managed to bring John Cain Arena to life even during a relatively straightforward 6-4 6-4 6-3 win over Liam Broady on Tuesday.

The Australian, who has dropped to 115th in the rankings after not playing since last year's US Open, is arguably the must-watch player in the men's draw.

Anything can happen when Kyrgios is in action. For all the frustrations about a thus far unfulfilled talent, Kyrgios – a two-time grand slam quarter-finalist – is box office.

On Thursday he faces the highest ranked player in the men's draw, last year's US Open champion Medvedev, in what shapes as being a thrilling contest.

Kyrgios has won both of his previous meetings with the Russian second seed, who is among the favourites to win the title at Melbourne Park.

With Roger Federer absent and Novak Djokovic having been deported from Australia, tournament officials have been gifted a contest that belongs in the second week.

All eyes will be on Thursday's schedule, with Kyrgios seemingly likely to miss out on playing on his preferred court – John Cain Arena – in a match that undoubtedly belongs on Rod Laver Arena.

"I mean, obviously either way it's going to be a hell of an experience for me. He's probably the best player in the world at the moment. So I'm pretty excited, I'm excited for that moment. That's why I play the game," Kyrgios said after beating Broady.

"I feel like those matches still excite me, to go out there and play the best in the world. That was always something I wanted to prove to people that someone like me could do, win those matches. I'm not going to go into it with a lot of expectation. I'm going to go out there, have some fun, play my game. I have a pretty set-in-stone game plan of what I need to do to have success.

"As I said, he's probably the best player in the world, he does everything extremely well. He's a hard worker, ticks all the boxes. I'm not going to even think about that now. To play it on John Cain would be – I'm just going to call it the Kyrgios Court – would be fun."

Kyrgios and Medvedev played twice in 2019, the Australian winning two tie-breaks in their most recent meeting in the final in Washington in August of that year.

Medvedev was a top-10 player then, but it would be later in that year that the Russian would truly make an impact, edged by Rafael Nadal in the US Open final.

He went 20-3 at majors last year, winning the title at Flushing Meadows, reaching the final in Melbourne and the French Open quarter-finals.

When he met Kyrgios in Washington, Medvedev had won four ATP titles. He now has 13 to his name.

"Yeah, I just became a different player in terms of ranking and titles. It gives you experience. That's where you can try to win matches which you have lost before, opponents which you have lost before," Medvedev said following his opening-round win against Henri Laaksonen.

"I think there are still some guys on tour who I haven't beat. So can stay like this. I think our last match was so long ago and we are both so different and a different momentum of our careers that it's really tough to count it. As I say, win or lose, I don't think these two matches gonna count into this one, so yeah."

Nick Kyrgios threw in an underarm serve in the second game of his Australian Open campaign, before tossing in a curveball in the post-match news conference.

Speaking after his 6-4 6-4 6-3 win over an outmatched Liam Broady on John Cain Arena, Kyrgios proposed he might play doubles with Novak Djokovic in the future.

Australian Kyrgios has dramatically changed his tune on the Serbian, but not in the way many have altered their perspective following recent events.

Djokovic was deported from Australia in the hours before the Australian Open got under way, a consequence of his own failure to get a COVID-19 vaccine and seemingly mixed messages from authorities before a court settled the kerfuffle.

His behaviour in December after a positive COVID-19 test has been widely criticised, and the reputation of arguably the greatest tennis player of all time has taken a battering in the past fortnight.

Kyrgios recently observed the treatment of Djokovic, a nine-time champion of the Melbourne Park grand slam, had been "really bad" and said it was important to "do better" by the 20-time slam winner.

The 26-year-old from Canberra has emerged as an unlikely cheerleader for the player he described as "a tool" and "a very strange cat" last February, after Djokovic was reported to have requested improved quarantine accommodation on arriving in Australia.

Now Kyrgios is revelling in his apparent sudden popularity in Serbia, where Djokovic's banishment from Australia was greeted with anger and dismay.

"I mean, it's great," Kyrgios said of his new standing. He then turned his focus to why he has stood up for his new friend.

"Obviously me and Novak have had some, I guess, differences in the past. But whether it was Novak or someone else, I would have done the same thing," he said.

"I didn't do it because he was Serbian. If it was another player in that scenario, I would have stood up for what I think was right.

"I think it was just coincidentally it was Novak, and, you know, it was quite a story. But we've got a bit of a bromance going on now, so I'm not going to complain.

"I think I'm going to ask him to play doubles somewhere."

It remains to be seen where this might next prove possible. Djokovic might find he needs a vaccination to play the French Open and US Open this year, amid reports an increasing number of tournaments will insist on players being immunised as a condition of entry.

Kyrgios, meanwhile, faced a daunting second-round match in Melbourne, with title favourite and de facto top seed Daniil Medvedev awaiting him.

Nick Kyrgios compared the crowd during his Australian Open first-round win to a zoo as fans copied a famous Cristiano Ronaldo celebration at almost every point.

Cries of 'siuu' could be heard throughout much of the home favourite's straight-sets victory over Liam Broady, his first match since a Laver Cup defeat to Stefanos Tsitsipas in September.

The shouts were apparently mimicking Manchester United star Cristiano Ronaldo's famous goal celebration.

There were similar incidents during Andy Murray's battling five-set win over Nikoloz Basilashvili, as the five-time finalist won his first match at the Melbourne major since 2017.

The raucous crowds caused confusion as many observers wondered if Murray and Kyrgios were being booed on court, despite each player also enjoying huge support.

Kyrgios later explained he was not surprised to hear the noise from the stands but was taken aback by how long they persisted.

"It's just a stupid, f***, I can't believe they did it so much," he said after his 6-4 6-4 6-3 victory on John Cain Arena. "They were doing some Ronaldo thing. Ronaldo does it every time he scores.

"It's like... I thought they were going to do it for like 10 minutes. They did it for two and a half hours, like, every point. I don't know why. It was a zoo out there."

Murray had wondered if the crowd was turning on him during his epic 6-1 3-6 6-4 6-7 (5-7) 6-4 victory because he had been targeted during his practice session on Monday.

"Initially, I thought it was [booing] because there were some people booing during my practice yesterday," he said. "I have no idea what for! 

"But then, after a few times, it was like, no, they're doing that, I think it's like 'Siuu' or something that Ronaldo does when he scores. And, yeah, it was incredibly irritating!"

Kyrgios produced some superb if often unorthodox tennis as he booked a second-round clash with world number two Daniil Medvedev, who is the highest-ranked male in the draw following the refusal to allow Novak Djokovic to compete.

The 26-year-old would like to return to John Cain to aid his chances of improving his record against the Russian to 3-0.

"It's going to be a hell of an experience for me," he said. "He's probably 'the' best player in the world at the moment. So I'm pretty excited, I'm excited for that moment. That's why I play the game.

"I feel like those matches still excite me, to go out there and play the best in the world. That was always something I wanted to prove to people that someone like me could do, win those matches.

"I'm not going to go into it with a lot of expectation. I'm going to go out there, have some fun, play my game. I have a pretty set-in-stone game plan of what I need to do to have success.

"As I said, he's probably the best player in the world, he does everything extremely well. He's a hard worker, ticks all the boxes. I'm not going to even think about that now. To play it on John Cain would be – I'm just going to call it the Kyrgios Court – would be fun."

Andy Murray marked his return to the Australian Open with a thrilling five-set win over Nikoloz Basilashvili and immediately targeted "a deep run" in the competition.

The three-time grand slam winner edged 21st seed Basilashvili 6-1 3-6 6-4 6-7 (5-7) 6-4 in a first-round match that lasted three hours and 52 minutes.

It is Murray's first win at the tournament in five years in what was his first outing at Melbourne Park since 2019, when he thought he might have to retire.

Murray was playing on the same court where a retirement video was played after defeat to Roberto Bautista Agut three years ago.

But the 34-year-old has battled back from injury setbacks admirably and last week reached his first ATP Tour final since October 2019 at the Sydney Classic.

With Japan's Taro Daniel now standing between Murray and a place in round three of the Australian Open, the five-time beaten finalist is eager to make up for lost time.

"It's amazing to be back," Murray said in his on-court interview. "It's been a tough three, four years. 

"I have put a lot of work to be back here and I have played on this court many times and the atmosphere has been incredible. 

"I have always had fantastic support and this is the court I thought I potentially played my last match on. 

"But it is good to be back, winning a five-set battle like that. I could not ask for any more.

"I would love to have a deep run here if possible. It's something I have not had at one of the slams since I came back from the injury and it is something that motivates me."

Wild card Murray broke hard-hitting Basilashvili nine times on John Cain Arena, but he looked physically drained as the match dragged on.

The former world number one showed incredible resolve to take the deciding set, however, against an opponent that had lost just once in seven previous five-set battles.

"I will hopefully keep improving. There are things in my game I can definitely do better," Murray said.

"I have played some of my best tennis here over the years. I feel comfortable here and I hope I can do well here this tournament."

Daniil Medvedev is happy to be considered the favourite for the Australian Open title but says Rafael Nadal remains the man to beat at Melbourne Park.

World number two Medvedev is now the top-seeded player in the competition after Novak Djokovic was deported from Australia on Sunday.

Competing in his first grand slam since winning the US Open in September, Medvedev made a solid start by seeing off Henri Laaksonen 6-1 6-4 7-6 (7-3) on Tuesday.

The Russian, who lost last year's Australian Open final to Djokovic in straight sets, will now take on either Liam Broady or Nick Kyrgios in round two.

He is aiming to become the first man in the Open Era to follow up his maiden Grand Slam title with another in his next major appearance.

Medvedev is not shying away from the spotlight, but the 25-year-old considers Nadal the real favourite for the trophy because of his incredible record.

"I like pressure but last year I started well here in Australia in the ATP Cup and I managed to be in the final here," he said.

"The tournaments in Australia are always really important for me. I like to play in Australia on hard courts. I want to do better here than I did last year but it's not going to be easy.

"But I always say whoever is the highest ranked is the favourite so this time I will go with Rafa because he has 20 Grand Slams."

The 20 major singles titles won by Nadal is equal to Djokovic and Roger Federer, who is also absent in Melbourne due to injury, as the most by a men's player.

Just one of those titles have come at the Australian Open, however, with the Spaniard – who beat Marcos Giron in his opening match on Monday – going all the way in 2009.

Nadal and Medvedev are in opposite sides of the draw and are on course to meet in the final, but many challengers await between now and then.

That path became a little clearer on Tuesday as world number eight Casper Ruud withdrew from the tournament due to an injured ankle.

Ruud had been due to face Alex Molcan in the first round, but his place will be taken by lucky loser Roman Safiullin.

Novak Djokovic could miss out on defending another of his Grand Slam titles, with France passing new vaccination laws that may threaten his ability to compete at Roland Garros later this year.

The 34-year-old will not defend his Australian Open title, with a drawn-out saga concerning his vaccination status culminating in his visa being cancelled for a second time after an intervention from Australian immigration minister Alex Hawke.

But the controversy surrounding the 20-time Grand Slam winner could be set to continue, with French parliament passing stringent vaccination laws ahead of May's French Open.

After French lawmakers comfortably passed the new measures, proof of vaccination status will soon be required to enter a wide variety of public places, including sports stadiums, and the country's sports ministry says there will be no exemptions for professional athletes. 

"The rule is simple. The vaccine pass will be imposed, as soon as the law is promulgated, in establishments that were already subject to the health pass," the ministry said.

"This will apply to everyone who is a spectator or a professional sportsperson, and until further notice.

"Now, as far as Roland Garros is concerned, it is in May. The situation may change between now and then, and we hope that it will be more favourable. 

"So, we'll see, but clearly, there's no exemption."

Djokovic, who is tied with Rafael Nadal and Roger Federer for all-time Slam wins in the men's game, has come in for widespread criticism regarding his failure to be vaccinated against COVID-19, as well as for appearing in public in the days after testing positive for the virus last month.

Meanwhile, Djokovic has arrived back in his native Serbia, travelling via Dubai from Melbourne to Belgrade after losing a last-ditch court appeal to remain in the country.

Rafael Nadal believes it would be "better for everybody" if Novak Djokovic was competing at the Australian Open, while declaring the situation a "mess".

Nadal sits level on 20 grand slam titles with Djokovic and Roger Federer but is the only one of tennis' 'Big Three' featuring in Melbourne.

Federer was ruled out due to ongoing knee injury problems, while Djokovic saw his visa cancelled for a second time on Sunday as he appealed Australia's refusal to let him into the country.

That ruling owed to Djokovic's unvaccinated status and Australia's coronavirus guidelines, leaving the Serbian unable to defend his Melbourne Park crown and seek a record-extending 21st grand slam.

Nadal has previously said he was "tired" of talking about the Djokovic saga, but the Spaniard again offered his thoughts after defeating Marcos Giron in the first round on Monday.

"Almost one week ago when he won in the first instance, the case, he was able to get back his visa and practising. I said the justice has spoken," Nadal told reporters.

"If the justice says his visa is valid and he's able to play here, the justice has spoken, so that's the fairest thing, that he deserves to play here. Yesterday the justice said another thing. I will never be against what the justice says.

"Another thing is what I believe personally and what I believe is the ideal situation personally, no?

"The ideal situation in the world of sport is that the best players are on court and playing the most important events. That's better for the sport without a doubt.

"If Novak Djokovic is playing here, it's better for everybody, no doubt about that. Another thing is what happened. As I said in the beginning, I can't say another thing because I believe that the situation is very clear now."

Pressed for an answer on his relationship with the 34-year-old world number one, Nadal wished his fellow competitor all the best.

"He's not the only one that did bad things in that case," Nadal added.

"Of course, there are more responsibilities on all for this terrible situation that we faced for the last two weeks. But of course, he is one of those responsible, too.

"So on a personal level, yes, I would like to see him playing here. If it is fair or not that he's playing here is another discussion that I don't want to talk anymore about that."

Nadal advanced to the second round in Melbourne with a cruising 6-1 6-4 6-2 victory over American Giron, who is ranked 66th in the world.

That was Nadal's fourth win of the year after triumphing at the Melbourne Summer Set and he appears to have battled through his foot injury, though he still expressed concerns over his fitness.

"It's been a very challenging few months… tough moments with a lot of doubts – there still are doubts," he said.

"But I am here and I can't be happier to be back in Australia in this amazing stadium.

"You never know when you come back from injury, which unfortunately I have a lot of experience with, how things will be, so you have to take it day by day. You have to forgive yourself if things aren't going the proper way."

Awaiting Nadal in the second round of the tournament will be either Australia's Thanasi Kokkinakis or Yannick Hanfmann of Germany.

Novak Djokovic could make an earlier-than-expected return to Australia despite the Serb facing a three-year ban from the country, according to prime minister Scott Morrison.

The world's number-one ranked player, who is level on 20 grand slam titles with Rafael Nadal and Roger Federer, saw his visa cancelled for a second time on public health grounds on Sunday.

Djokovic was attempting to overturn the original decision to refuse his entry into Australia, which was due to his unvaccinated status and the country's coronavirus rules.

That leaves the 34-year-old unable to defend his Australian Open title at Melbourne Park, while he was also handed an automatic three-year ban from the country under immigration law, unless Australia's immigration minister overrules the judgement.

Compelling or compassionate reasons would be needed to do so, but Morrison refused to rule out the possibility of Djokovic making an early return.

"I'm not going to precondition any of that or say anything that would not enable the minister to make the various calls he has to make," Morrison said to 2GB Radio on Monday.

"It does go over a three-year period, but there is the opportunity for [a person] to return in the right circumstances, and that will be considered at the time."

Morrison then insisted that Djokovic, who has already expressed his disappointment with the ruling, and any other entrant to Australia must comply with their rules.

"If you're someone coming from overseas, and there are conditions for you to enter this country, then you have to comply with them," he continued.

"This is about someone who sought to come to Australia and not comply with the entry rules at our border."

The Australian Open started on Monday, with Nadal advancing past Marcos Giron in his first-round match.

Rafael Nadal made a strong start to his Australian Open campaign, brushing past Marcos Giron in the opening round on Monday.

The Spanish superstar outclassed American Giron in a resounding 6-1 6-4 6-2 victory on Rod Laver Arena.

Nadal, who can claim the outright lead for most grand slams won by a man if he clinches his 21st in Melbourne, was in good form.

Playing his first major since last year's French Open, Nadal – the only former champion in the draw following Novak Djokovic's deportation from the country – was never troubled by Giron.

Nadal reeled off five consecutive games to take the opening set in 24 minutes.

His excellent first set was highlighted by two brilliant winners to break for 5-1 as he completely dominated Giron.

Nadal capitalised on his momentum by breaking in the opening game of the second set, Giron finally stopping the run by holding for 1-2.

The Spaniard maintained his lead and was forced to serve out the set, doing so to 15 to take complete control.

A backhand pass saw Nadal break again in the opening game of the third set on his way to a comprehensive win, with Thanasi Kokkinakis or Yannick Hanfmann awaiting him in the second round.

DATA SLAM: Nadal makes no mistake in opener

Only twice in his illustrious career has Nadal lost in the opening round of a grand slam – at Wimbledon in 2013 and the 2016 Australian Open.

But since his defeat to Fernando Verdasco in Melbourne six years ago, Nadal has not lost a set in the Australian Open first round, continuing that record against Giron.

WINNERS/UNFORCED ERRORS
Nadal – 34/26
Giron – 10/23

ACES/DOUBLE FAULTS
Nadal – 7/2
Giron – 2/2

BREAK POINTS WON
Nadal – 5/9
Giron – 0/2

Novak Djokovic will be banned from Australia for three years after the world number one's visa cancellation was upheld, the federal government has confirmed.

The 20-time Grand Slam winner failed in his bid to overturn a decision from the government to cancel his visa on public health grounds at the Federal Court in Melbourne on Sunday.

Djokovic, who is unvaccinated against COVID-19, is therefore unable to participate in the Australian Open, where he was due to launch his quest for a record-extending 10th title against fellow Serbian Miomir Kecmanovic on Monday.

After departing Australia, he will now be unable to return for the next three years, as is standard for the deportation order under the Migration Act – although this is subject to application and he could be permitted to return before then.

However, as it stands the 34-year-old would miss the next three editions of the slam. 

Speaking on the Today Show, minister for home affairs Karen Andrews said: "The outcome of the process that went before the Federal Court and their determinations – the visa was cancelled by [immigration] minister Hawke.

"That cancellation was upheld by the Federal Court, so as a result of that, he will be banned from entry for three years into the country.

"Now there are some compelling reasons that may be looked at, but that's all hypothetical at this point. Any application will be reviewed on its merits."

The long-running saga began after Djokovic was held at an airport in Melbourne when he arrived in the country on January 6.

The world number one won an appeal to overturn the first bid to deport him from the country, but immigration minister Hawke used his powers to again cancel the visa on Friday and Djokovic left Australia late on Sunday.