Former medallist Moorhouse on Shiwen Ye doping row

31 July 2012 Last updated at 06:14 ET Help

The Chinese swimmer who won gold in the women's 400m individual medley on Saturday has denied using banned substances.

Ye Shiwen, 16, beat the world record by more than a second and John Leonard, a leading US coach, said her performance was "disturbing".

Adrian Moorhouse, who won gold in the 100m breaststroke in 1988, told 5 liveBreakfast that her age could be a significant factor.

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