IOC spokesman: Ye allegations 'sad'

China's Ye Shiwen waves after the finish of the women's 200m individual medley semi-final swimming event at the London 2012 Olympic Games on July 30, 2012 in London. AFP PHOTO / MARTIN BUREAU (Photo credit should read MARTIN BUREAU/AFP/GettyImages)

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    IOC spokesman: Ye allegations 'sad'

IOC spokesman Mark Adams tells CNN that doping allegations made against Chinese swimmer Ye Shiwen are "pure rumors."