WADA not to appeal Sun Yang's doping ban

The World Anti-Doping Agency told Agence France-Presse on Wednesday that it will not appeal against a three-month ban imposed on Chinese Olympic champion swimmer Sun Yang.

Sun, winner of two gold medals at the 2012 London Olympics, served the suspension earlier this year after testing positive for the banned stimulant trimetazidine during the national swimming championships in May.

Sun did not mention the suspension in Incheon at the Asian Games in late September, where he won three gold medals, and the China Anti-Doping Agency (CHINADA) said it did not immediately announce the sanction because it only reveals positive tests every three months.

The swimmer insisted that he did not know the substance was banned, and that he took it to cure heart palpitations.

"WADA has reviewed the full case file for the Chinese swimmer Sun Yang and has decided not to appeal the decision by the Chinese Swimming Federation to impose a three month sanction," WADA spokesman Ben Nichols told AFP in a statement.

"WADA has written to CHINADA however, raising its concern over the delayed public reporting of the case," the spokesman added.

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