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Denis Kudla of the U.S. returns a shot during the men's singles second round match against Dominic Thiem of Austria at Australian Open 2018 in Melbourne, Australia, Jan. 18, 2018. Dominic Thiem won 3-2. (Xinhua/Zhu Hongye)
Denis Kudla of the U.S. returns a shot during the men's singles second round match against Dominic Thiem of Austria at Australian Open 2018 in Melbourne, Australia, Jan. 18, 2018. Dominic Thiem won 3-2. (Xinhua/Zhu Hongye)