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Karen Khachanov returns the ball during the men's singles semifinal match between Daniil Medvedev of Russia and Karen Khachanov of Russia at the 2019 Rogers Cup in Montreal, Canada, Aug. 10, 2019. (Xinhua/Andrew Soong)
Karen Khachanov returns the ball during the men's singles semifinal match between Daniil Medvedev of Russia and Karen Khachanov of Russia at the 2019 Rogers Cup in Montreal, Canada, Aug. 10, 2019. (Xinhua/Andrew Soong)