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Karen Khachanov of Russia gestures during the men's singles semifinal match against Dominic Thiem of Austria at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 5, 2019. (Xinhua/Li Yibo)
Karen Khachanov of Russia gestures during the men's singles semifinal match against Dominic Thiem of Austria at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 5, 2019. (Xinhua/Li Yibo)