In that case, the exemption shall apply to vaccination of covid-19.

Djokovic has not wanted to say whether he has been vaccinated or not, but has been strongly critical of the requirement for vaccination to play this year's first grand slam tournament.

Djokovic has won the last three editions of the tournament in Melbourne, and has six more titles at the Australian Open.

If he plays in Melbourne, it will be to chase the record of 21 grand slam titles.

He shares first place at 20 with Roger Federer and Rafael Nadal.

On Instagram, along with a picture of him standing at an airport with his luggage, Djokovic writes:

"Today I go Down Under with one exception".