FILE PHOTO: Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 3, 2022 Greece's Stefanos Tsitsipas in action during his group stage match against Argentina's Diego Schwartzman REUTERS/Asanka Brendon Ratnayake
(Reuters) - World 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.
Djokovic was included https://www.reuters.com/lifestyle/sports/australian-open-draw-delayed-djokovic-visa-decision-awaited-2022-01-13 in the Australian Open draw on Thursday, though uncertainty hangs over his participation with the government yet to decide whether to cancel his visa for a second time over concerns about his medical exemption from Australia's vaccine mandate.
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