vaccinated. >> novak djokovic arrived back in his home country of serbia after australian authorities canceled his visa on public health and order grounds. the serbian government outraged by the political intervention. >> translator: i think the decision is scandalous. i am disappointed and i think it has shown how the rule of law functions in some other countries i.e. how it doesn't function. it's incredible. >> reporter: australia's immigration minister argued djokovic who is unvaccinated but sought medical exemption to play in the open could incite the country's anti-vaxers. it was their final volley in a drawn out legal grudge match that saw him detained by immigration authorities twice in a matter of weeks. djokovic has been widely criticized for remaining unvaccinated and for breaking self-isolation in serbia. after testing positive in december, he attended a photo shoot in person. here in belgrade the tennis star