Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China poses during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts after winning the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China poses during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Gold medallist Sun Yang (C) of China poses with silver medallist Michael McBroom (L) of the United States and bronze medallist Ryan Cochrane of Canada during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China reacts during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Guo Yong)

 

Sun Yang of China greets spectators after the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Wang Lili)

 

Sun Yang of China reacts during the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Wang Lili)

 

Sun Yang of China greets spectators after the awarding ceremony of the men's 800m freestyle final of the swimming competition at the 15th FINA World Championships in Barcelona, Spain on July 31, 2013. Sun Yang won the gold medal with 7 minutes and 41.36 seconds. (Xinhua/Wang Lili)