China's Sun Yang (Front) stretches after a training session in Barcelona, Spain, on July 23, 2013. (Xinhua/Guo Yong)
China's Sun Yang reacts after a training session in Barcelona, Spain, on July 23, 2013. (Xinhua/Guo Yong)
China's Sun Yang takes part in a training session in Barcelona, Spain, on July 23, 2013. (Xinhua/Guo Yong)
China's Sun Yang takes part in a training session in Barcelona, Spain, on July 23, 2013. (Xinhua/Guo Yong)
China's Sun Yang (C) takes part in a training session in Barcelona, Spain, on July 23, 2013. (Xinhua/Guo Yong)