Stan Wawrinka of Switzerland returns the ball during the third round singles match against Gilles Simon of France at the Shanghai Masters tennis tournament in Shanghai, east China, Oct. 13, 2016. Stan Wawrinka lost 0-2. (Xinhua/Fan Jun)
Stan Wawrinka of Switzerland returns the ball during the third round singles match against Gilles Simon of France at the Shanghai Masters tennis tournament in Shanghai, east China, Oct. 13, 2016. Stan Wawrinka lost 0-2. (Xinhua/Fan Jun)