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Austria's Dominic Thiem reacts after the men's singles first round match against Argentina's Guido Pella at the Australian Open tennis championships in Melbourne, Australia, Jan. 16, 2018. Thiem won 3-0. (Xinhua/Li Peng)
Austria's Dominic Thiem reacts after the men's singles first round match against Argentina's Guido Pella at the Australian Open tennis championships in Melbourne, Australia, Jan. 16, 2018. Thiem won 3-0. (Xinhua/Li Peng)