Novak Djokovic has successfully appealed against a decision to cancel his visa ahead of the Australian Open tennis.
The world number one, who is believed to be unvaccinated against Covid-19, understood he had been granted a medical exemption to compete in Melbourne.
His legal team told a court hearing the Serb entered the country on the understanding his quarantine exemption was valid.
A judge has now ruled the decision by border officials to revoke it was unreasonable.
Australia's immigration minister could still step in to cancel his visa again.
