Chinese Olympic doping case swept ‘under the carpet' by WADA, U.S. anti-doping chief says

A new doping scandal has erupted involving Olympic swimmers from China. Chinese authorities and the World Anti-Doping Agency found the drug trimetazidine but cleared the swimmers and did not flag problems to Olympic officials. Several who tested positive went on to win medals, including three gold medals. Jeffrey Brown discussed the latest with Travis Tygart of the U.S. Anti-Doping Agency.

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