In a rematch of the 2021 French Open decider, Djokovic swept a victory at Rod Laver Arena to reclaim the world number one ranking and again deny Tsitsipas a maiden major crown.

Ruud's second-round exit came a day after Djokovic's great rival Rafa Nadal, the top seed, had been evicted after suffering a hip flexor injury that will sideline him for up to two months.

Kyrgios, ranked 22nd in the world and runner-up at last year's Wimbledon, has not played since October.

Djokovic missed the tournaments last year as well and he was unable to travel to New York in August for the US Open without proof of vaccination.

Djokovic's saga has fuelled global debate over the rights of people who opt not to get vaccinated as governments look to protect the community from the coronavirus pandemic.

A decision to again cancel his visa could set up a second court battle by the Serbian tennis star, after a court quashed an earlier revocation and released him from immigration detention on Monday.

Despite the admissions, Djokovic insisted other reports about him appearing in public following his positive test for Covid-19 were 'misinformation'.

Judge Anthony Kelly abruptly ends days of legal wrangling, after the state drops its decision to revoke the star's visa.

Djokovic's plight has been closely followed around the world, creating political tensions between Belgrade and Canberra and sparking heated debate over national vaccination mandates.