World number one Novak Djokovic has been "playing by his own rules" and has put his bid for a 21st Grand Slam title at risk by not following Australia's COVID-19 vaccination requirements, world number four Stefanos Tsitsipas said on Thursday.
Djokovic's family said his release was the 'biggest victory of his life'.
Taiwan's Hsieh Su-wei has enjoyed double good fortune at Melbourne Park this week.
Images from Day 2 of the Australian Open in Melbourne on Tuesday
Victoria Premier Daniel Andrews said his government will not apply for travel permits to allow unvaccinated tennis players to compete at the Australian Open in the state after Prime Minister Scott Morrison indicated they would be allowed into the country.
India's singles player Somdev Devvarman suffered disappointment in the Australian Open qualifications at Melbourne Park on Thursday. The 173rd-ranked lost 6-2, 1-6, 4-6 to the 164th-ranked Jurgen Zopp of Estonia. World No. 168 Saketh Myneni was left the last Indian standing as he edged out another Indian and Chennai Open quarter-finalist Ramkumar Ramanathan, 6-4, 6-1.
Images from day ten of the 2010 Australian Open Grand Slam tennis tournament in Melbourne, on Wednesday.
Somdev Devvarman and Prakash Amritraj fought their way into the second round of the men's doubles event of the Australian Open but Rohan Bopanna's challenge came to an end with a first round defeat in Melbourne on Wednesday.
Sania Mirza will have to wait till Tuesday to start her Australian Open campaign as rains forced postponement of her first round match in Melbourne on Monday.
Australia's traditional love of the underdog and admiration for sporting battlers garnered plenty of support for Briton Andy Murray during his long wait for Grand Slam success.
Images from the Australian Open women's final on Saturday.
China's Li Na advanced to her second successive Australian Open final with a 6-2, 6-4 victory over Canadian teenager Eugenie Bouchard on Thursday.
Stan Wawrinka let his tennis do the talking as he brushed off the after-effects of a cold to breeze into the fourth round of the Australian Open with a 6-2, 6-3, 7-6(3) victory over Lukas Rosol on Saturday.
'You might just have to leave (for Australia) a few weeks earlier than everyone else. That's the player's choice. If the local government puts that in place then I would support that. It would be great if more players got vaccinated.'
Grigor Dimitrov reached his first grand slam quarter-final in over two years on Monday by defeating an injury-hampered Denis Istomin 2-6, 7-6(2), 6-2, 6-1 to end the Uzbek wildcard's fairytale run at the Australian Open.
Sania Mirza and Mahesh Bhupathi moved through to the Australian Open mixed doubles final after a comfortable 6-4, 6-1 win over the Czech Republic's Iveta Benesova and Lukas Dlouhy in Melbourne on Friday.
Four Indians, including three women, have been killed in a tragic drowning incident at an unpatrolled beach in the Australian state of Victoria, the worst tragedy in Victorian waters in almost 20 years, officials said on Thursday.
Serena Williams outplayed Maria Sharapova to claim the 2015 Australian Open championship in straight sets on Saturday.
Garbine Muguruza has to be the one taking charge in the Australian Open final against "fighter" Sofia Kenin if she is to win her third Grand Slam title, the Spaniard's coach Conchita Martinez said.
A look at the 10 landmark matches from the 20-times Grand Slam champion's career.
The Briton lapped the Albert Park circuit in a searing one minute and 21.164 seconds to cross the line 0.664 seconds clear of Ferrari's Kimi Raikkonen.
The second round match against Argentine Federico Delbonis lacked nothing in quality power tennis but was almost entirely devoid of drama and the most notable incident came late in the third set when the ball flew off top seed Nadal's racket and hit a ballgirl on the head.
Defending champion Victoria Azarenka suffered a panic attack trying to close out her Australian Open semi-final against American teenager Sloane Stephens on Thursday and needed a long medical timeout before setting up a final against Li Na.
Photos of the Australian Open matches
Dominika Cibulkova, the first Slovakian woman to reach a Grand Slam final, will take on China's Li Na in the Australian Open women's singles final at Melbourne Park, on Saturday.
Images from Friday's Australian Open men's singles second semi-final between Rafael Nadal and Roger Federer.
Serena Williams admitted that a bad back sustained during practice hampered her movement during her shock fourth round loss to Ana Ivanovic on Sunday, but refused to blame the injury for her stunning exit that blew the Australian Open wide open.
Images from the Australian Open matches played on Sunday.
Images from the Australian Open matches played in Melbourne on Saturday.
Images from Day One of the Australian Open, in Melbourne, on Monday.
Sania Mirza and Rohan Bopanna set up a mixed doubles quarter-final clash against each other at the Australian Open after winning their respective matches, in Melbourne.
Victoria Azarenka thinks her rivalry with Serena Williams is making her a better player and is looking forward to renewing it over the next four weeks at the Brisbane International and the Australian Open.
Reigning champion and top seed Angelique Kerber was knocked out of the fourth round of the Australian Open on Sunday, losing 6-2, 6-3 to American Coco Vandeweghe on Rod Laver Arena.
Deposed champion Roger Federer left Melbourne Park with his head held high after losing to Novak Djokovic in the semi-finals.
The man was shot after confronting police officers on a busy city street, authorities said. He was taken into custody in a critical condition. He succumbed to the gunshot wounds in the Royal Melbourne Hospital.
Immigration Minister Alex Hawke is weighing exercising his discretionary powers to revoke Djokovic's visa
Having toppled 20-time Grand Slam champion Roger Federer in the fourth round of the Australian Open on Sunday, an overwhelmed Stefanos Tsitsipas felt thrilled to have turned his idol into a 'rival'.
Short of tournament sharpness in the build-up to the Australian Open because of injury, Maria Sharapova has found a novel way of playing herself into form -- roughing up the local boys.
Novak Djokovic will need to spend some time on the sidelines recovering from a muscle tear that hindered him in the later rounds of the Australian Open, the Serbian said as he celebrated his ninth Melbourne Park title on Monday.