Djokovic 'playing by his own rules', says Tsitsipas - CNN
4:53am PST - January 13th, 2022 sports - CNNWorld number one Novak Djokovic has been "playing by his own rules" and has put his bid for a 21st Grand Slam title at risk by not following Australia's COVID-19 vaccination requirements, world number four Stefanos Tsitsipas said on Thursday.