China's Sun Yang (L) and United States' Katie Ledecky receive the awards as best athletes of the competition at the end of the Swimming World Championships in Kazan, Russia, Aug 9, 2015.(Photo: China News Service/Hou Yu)
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China's Sun Yang (L) and United States' Katie Ledecky receive the awards as best athletes of the competition at the end of the Swimming World Championships in Kazan, Russia, Aug 9, 2015.(Photo: China News Service/Hou Yu)
