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Marin Cilic of Croatia serves during the men's singles second round match against Benoit Paire of France at the 2020 Australian Open tennis tournament in Melbourne, Australia, Jan. 22, 2020. (Xinhua/Zhu Hongye)
Marin Cilic of Croatia serves during the men's singles second round match against Benoit Paire of France at the 2020 Australian Open tennis tournament in Melbourne, Australia, Jan. 22, 2020. (Xinhua/Zhu Hongye)