
Naomi Osaka of Japan hits a return to Duan Yingying of China during a women's singles second round match at the 2016 U.S. Open tennis tournament in New York, the United States, Aug. 31, 2016. Naomi Osaka won 2-0. (Xinhua/Qin Lang)

Naomi Osaka of Japan hits a return to Duan Yingying of China during a women's singles second round match at the 2016 U.S. Open tennis tournament in New York, the United States, Aug. 31, 2016. Naomi Osaka won 2-0. (Xinhua/Qin Lang)
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