
Rafael Nadal of Spain celebrates after the men's singles first round match against Dusan Lajovic of Serbia at the 2017 US Open tennis tournament in New York, the United States, Aug. 29, 2017. (Xinhua/Wang Ying)

Rafael Nadal of Spain celebrates after the men's singles first round match against Dusan Lajovic of Serbia at the 2017 US Open tennis tournament in New York, the United States, Aug. 29, 2017. (Xinhua/Wang Ying)