Players at the Australian Open will not need to take Covid-19 tests and could play if they have the virus.
"We have gone a step further by making a recommendation around staying away when you're ill."
Last year players had to test daily and isolate if positive and also had to be vaccinated, while in 2021 the event took place in a biosecure bubble.
Nine-time champion Novak Djokovic, who is unvaccinated, was deported last January just before the tournament because of his Covid-19 status.
"We've made it clear to our players, as well as our staff, if anyone is feeling unwell, stay home, our medical staff will continue to monitor that, with the players individually as well.