MELBOURNE, Australia — In a court filing on Saturday, lawyers for Novak Djokovic said the tennis star had tested positive for the coronavirus in mid-December, and that the Australian government had erred this week in canceling his visa over a vaccine requirement.
Mr. Djokovic, who hopes to defend his men’s singles title at the Australian Open this month, was denied permission to enter the country on Thursday after arriving at a Melbourne airport. The border authorities said they canceled his visa because he had not provided evidence to justify being exempted from Australia’s requirement that arrivals be vaccinated against the coronavirus.