As I understand the scenario, the world’s number one men’s tennis player had contracted Covid in December and recovered despite having met unmasked with young tennis players and the press when he was probably infectious. Then he traveled to Australia to play in the Open there, but was stopped at the border because he was not vaccinated. He was thrown into quarantine and his lawyers appealed in court. The initial hearing granted him entry, but then the key Australian government minister denied him access to the country again and now he is deported without being allowed to play in the tournament. If he won this tournament, he would have accrued the most Grand Slam titles of any man in history, so this is not a small matter in tennis.