Source: Xinhua| 2018-08-29 11:30:02|Editor: Xiang Bo
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Yoshihito Nishioka of Japan reacts during the men's singles first round match against Roger Federer of Switzerland at the 2018 US Open tennis Championships in New York, the United States, Aug. 28, 2018. Roger Federer won 3-0. (Xinhua/Li Muzi)