
Hyeon Chung of South Korea serves during the first round match against Feliciano Lopez of Spain at the Rogers Cup tennis tournament in Montreal, Canada, on Aug. 8, 2017. (Xinhua/Andrew Soong)
Hyeon Chung of South Korea serves during the first round match against Feliciano Lopez of Spain at the Rogers Cup tennis tournament in Montreal, Canada, on Aug. 8, 2017. (Xinhua/Andrew Soong)