Nick Kyrgios beats John Isner 2-1 during men's singles semifinal match at 2019 ATP Mexican Open

John Isner of the United States hits a return during the men's singles semifinal match between Nick Kyrgios of Australia and John Isner of the United States at the 2019 ATP Mexican Open tennis tournament in Acapulco, Mexico, on March. 1, 2019. Nick Kyrgios won 2-1. (Xinhua/Xin Yuewei)