Novak Djokovic, the world No. 1 player in men\u2019s tennis, had a lot at stake going into this year\u2019s Australian Open. A win there would have made him the most decorated male tennis player in history.\n\nBut he arrived in the country without having had a Covid-19 vaccination, flying in the face of Australia\u2019s rules, and after a court battle he was ultimately deported.\n\nIn Australia, the \u201cDjokovic affair\u201d has become about a lot more than athletes and vaccines \u2014 it has prompted conversations about the country\u2019s aggressive border policy, isolationism and treatment of migrants.