New 400m Olympic Freestyle record for China's Yang | London 2012 Replays
China's Sun Yang beats the Olympic record as he takes gold in the men's 400m freestyle at the Olympic Games London 2012.
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New 400m Olympic Freestyle record for China's Yang | London 2012 Replays
China's Sun Yang beats the Olympic record as he takes gold in the men's 400m freestyle at the Olympic Games London 2012.
