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SYDNEY — The world's top anti-doping regulator says 23 Chinese swimmers were cleared to compete at the Tokyo Olympics despite testing positive for a banned heart medication because it agreed with Chinese authorities and ruled that their samples had been contaminated. The World Anti-Doping Agency said Saturday that the swimmers tested positive for the heart medication trimetazidine in the months leading up to the start of the Tokyo Olympics in 2021. The Daily Telegraph in Sydney and The New York Times reported that Chinese anti-doping authorities found the results of the tests were Adverse Analytical Findings (AAF) but cleared the swimmers without any penalties after finding that the samples were flagged as positive as a result of contamination.
