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Karen Khachanov of Russia reacts during the men's quarterfinal match between Karen Khachanov of Russia and Fabio Fognini of Italy at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 4,2019. (Xinhua/Li Yibo)
Karen Khachanov of Russia reacts during the men's quarterfinal match between Karen Khachanov of Russia and Fabio Fognini of Italy at 2019 China Open tennis tournament in Beijing, capital of China, Oct. 4,2019. (Xinhua/Li Yibo)