Novak Djokovicis is unlikely to play at the Australian Open unless rules over Covid-19 vaccinations, are relaxed, says his father Srdjan Djokovic.
Unvaccinated players will not be allowed to compete at the 2022 event and defending champion Djokovic, 34, has declined to disclose his status.
"Under these blackmails and conditions, he probably won't [play]," Srdjan Djokovic told Serbian TV.
"I wouldn't do that. And he's my son, so you decide for yourself."
World number one Djokovic has won the Australian Open a record nine times and is level on 20 Grand Slam wins with Roger Federer and Rafael Nadal.