
Nick Kyrgios of Australia serves 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 serves 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)