The World Anti-Doping Agency (WADA) confirms that following a thorough review, it will not lodge an appeal to the Court of Arbitration for Sport (CAS) in the case of Polish tennis player, Iga Świątek, who tested positive for trimetazidine (TMZ), a prohibited substance, in August 2024.
On 28 November, the International Tennis Integrity Agency (ITIA), the independent body that delivers anti-doping programs on behalf of the International Tennis Federation, announced that Ms. Świątek had accepted a one-month period of ineligibility after the ITIA determined that her positive test for TMZ was caused by a contaminated melatonin product that is regulated as a medication in Poland and was sourced from a reputable pharmacy in that country.
WADA has conducted a full review of the case file related to the ITIA decision, which it received on 29 November. WADA’s scientific experts have confirmed that the specific contaminated melatonin scenario, as presented by the athlete and accepted by the ITIA, is plausible and that there would be no scientific grounds to challenge it at CAS.
Further, WADA sought advice from external legal counsel, who considered that the athlete’s contamination explanation was well evidenced, that the ITIA decision was compliant with the World Anti-Doping Code, and that there was no reasonable basis to appeal it to the CAS.
