![(SP)US-NEW YORK-TENNIS-US OPEN-SECOND ROUND](136573461_15042431908981n.jpg)
Roger Federer of Sweitzerland celebrates a point during the men's singles second round match against Mikhail Youzhny of Russia at the 2017 US Open in New York, the United States, Aug. 31, 2017. Federer won 3-2. (Xinhua/Wang Ying)
Roger Federer of Sweitzerland celebrates a point during the men's singles second round match against Mikhail Youzhny of Russia at the 2017 US Open in New York, the United States, Aug. 31, 2017. Federer won 3-2. (Xinhua/Wang Ying)