Novak Djokovic has been welcomed back into Australia almost a year after he was deported over his Covid vaccine status.
Serb Djokovic, a nine-time Australian Open winner, had an automatic three-year visa ban overturned in November.
"I think that he is going to be again the player to beat," said Tennis Australia chief executive Craig Tiley.
Last January, when Djokovic arrived in Australia for the 2022 tournament, Covid cases were skyrocketing and government rules required anyone entering the country to be vaccinated - unless they had a valid medication exemption.
Djokovic, who was detained by the Australian Border Force on entering the country and forced to stay at an immigration hotel, claimed he had obtained a medical exemption to defend his title without being vaccinated because he had recently recovered from Covid-19.