
Robin Haase of the Netherlands reacts during the quarterfinal match of men's singles against Karen Khachanov of Russia at the 2018 Rogers Cup in Toronto, Canada, Aug. 10, 2018. Robin Haase of the Netherlands lost 0-2. (Xinhua/Zou Zheng)

Robin Haase of the Netherlands reacts during the quarterfinal match of men's singles against Karen Khachanov of Russia at the 2018 Rogers Cup in Toronto, Canada, Aug. 10, 2018. Robin Haase of the Netherlands lost 0-2. (Xinhua/Zou Zheng)