THE World Anti-Doping agency (WADA) said Wednesday that it will not appeal against a three-month ban imposed against China’s controversial double Olympic swimming champion Sun Yang but will warn China over the case.

    WADA had considered action after Sun failed a doping test in May and was banned for three months by the Chinese federation but it was only announced in November after Sun had won more titles at the Asian Games.

    “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 said in a statement.

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

    Nichols said no other comment on the Sun case would be made.

    The WADA code says violations must be publicly reported within 20 days and that decisions have to be sent to WADA in the same time-period.

    The China Anti-Doping Agency (CHINADA) said it had been too busy with other cases to announce Sun’s suspension, despite his high profile.

    The 1,500-meter world record-holder received his suspension in July but it was backdated to May, when he tested positive at China’s national championships for the stimulant trimetazidine.

    (SD-Agencies)