The judge hearing Novak Djokovic's challenge to an order by the Australian government revoking his entry visa has dramatically overturned the decision.
Judge Anthony Kelly ordered the release of the tennis star from detention, and told the government to pay his costs.
The 34-year-old Serbian player flew into Melbourne last week, hoping to defend his Australian Open title.
But Immigration Minister Alex Hawke could still cancel his visa on new grounds.
The government acknowledged in court that Djokovic was not given enough time to respond following the notification to cancel his visa.