Tennis news 2021: Novak Djokovic withdraws from ATP Cup in Sydney, Australian Open 2022, ATP Cup teams
![Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 3, 2022 Argentina's Diego Schwartzman in action during his group stage match against Greece's Stefanos Tsitsipas REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 3, 2022 Argentina's Diego Schwartzman in action during his group stage match against Greece's Stefanos Tsitsipas REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy](https://c8.alamy.com/comp/2HD3RD8/tennis-atp-cup-sydney-olympic-park-sydney-australia-january-3-2022-argentinas-diego-schwartzman-in-action-during-his-group-stage-match-against-greeces-stefanos-tsitsipas-reutersasanka-brendon-ratnayake-2HD3RD8.jpg)
Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 3, 2022 Argentina's Diego Schwartzman in action during his group stage match against Greece's Stefanos Tsitsipas REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy
![Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 1, 2022 Chile's Alejandro Tabilo in action during his group stage match against Spain's Pablo Carreno REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 1, 2022 Chile's Alejandro Tabilo in action during his group stage match against Spain's Pablo Carreno REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy](https://c8.alamy.com/comp/2HCRPMN/tennis-atp-cup-sydney-olympic-park-sydney-australia-january-1-2022-chiles-alejandro-tabilo-in-action-during-his-group-stage-match-against-spains-pablo-carreno-reutersasanka-brendon-ratnayake-2HCRPMN.jpg)
Tennis - ATP Cup - Sydney Olympic Park, Sydney, Australia - January 1, 2022 Chile's Alejandro Tabilo in action during his group stage match against Spain's Pablo Carreno REUTERS/Asanka Brendon Ratnayake Stock Photo - Alamy
![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 Stock Photo - Alamy 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 Stock Photo - Alamy](https://c8.alamy.com/comp/2HD3PD4/tennis-atp-cup-sydney-olympic-park-sydney-australia-january-3-2022-greeces-stefanos-tsitsipas-in-action-during-his-group-stage-match-against-argentinas-diego-schwartzman-reutersasanka-brendon-ratnayake-2HD3PD4.jpg)