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Nick Kyrgios of Australia hits a return during the men's single match against Rafael Nadal of Spain at Fast4 Showdown in 2019 Sydney Tennis Open in Sydney, Australia, Jan. 7, 2019. Nick Kyrgios won 2-1. (Xinhua/Zhu Hongye)
Nick Kyrgios of Australia hits a return during the men's single match against Rafael Nadal of Spain at Fast4 Showdown in 2019 Sydney Tennis Open in Sydney, Australia, Jan. 7, 2019. Nick Kyrgios won 2-1. (Xinhua/Zhu Hongye)