Ning Zetao of China celebrates after winning the men's 100m freestyle final at the 2015 FINA World Championships in Kazan, Russia August 6, 2015. Ning Zetao claimed the title with 47.84 seconds. (Photo/China News Service)
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Ning Zetao of China celebrates after winning the men's 100m freestyle final at the 2015 FINA World Championships in Kazan, Russia August 6, 2015. Ning Zetao claimed the title with 47.84 seconds. (Photo/China News Service)
