World No 1, who has declined to reveal whether he is vaccinated against Covid, will not lead Serbian team at Sydney tournament
Novak Djokovic has withdrawn from the Serbian team taking part at the ATP Cup from 1 January in Sydney, throwing his participation in the Australian Open further into doubt.
Organisers have confirmed Djokovic won’t be competing in Sydney, with the Serbs now to be led by world No.33 Dusan Lajovic.