Jo-Wilfried Tsonga of France serves to James Duckworth of Australia during a men's singles second round match at the 2016 U.S. Open in New York, the United States, Aug.31, 2016. Tsonga won 3-1. (Xinhua/Qin Lang)
Jo-Wilfried Tsonga of France serves to James Duckworth of Australia during a men's singles second round match at the 2016 U.S. Open in New York, the United States, Aug.31, 2016. Tsonga won 3-1. (Xinhua/Qin Lang)
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