
Nick Kyrgios of Australia hits a return during the men's singles first round match against Victor Troicki of Serbia at the 2017 Rogers Cup in Montreal, Canada, Aug. 7, 2017. Kyrgios won 2-0. (Xinhua/Andrew Soong)

Nick Kyrgios of Australia hits a return during the men's singles first round match against Victor Troicki of Serbia at the 2017 Rogers Cup in Montreal, Canada, Aug. 7, 2017. Kyrgios won 2-0. (Xinhua/Andrew Soong)