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Tomas Berdych of the Czech Republic serves during the men's singles 3rd round match against Diego Schwartzman of Argentina at the Australian Open in Melbourne, Australia, Jan. 18, 2019. (Xinhua/Bai Xuefei)
Tomas Berdych of the Czech Republic serves during the men's singles 3rd round match against Diego Schwartzman of Argentina at the Australian Open in Melbourne, Australia, Jan. 18, 2019. (Xinhua/Bai Xuefei)