WADA confirms it cleared Chinese swimmers for 2021 Olympics despite positive doping tests

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 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 but that Chinese authorities told the agency the positives were the result of contamination.

"Ultimately, we concluded that there was no concrete basis to challenge the asserted contamination," WADA's senior director of science and medicine Olivier Rabin said in a news release.

The 30-member Chinese swim team won six medals in Tokyo, including three gold. Many of the athletes still compete for China and are expected to swim at the Paris Olympics this summer.

Reports about the doping positives came out Saturday in the Daily Telegraph in Sydney and The New York Times.

WADA responded to what it called "some misleading and potentially defamatory media coverage this week" and explained the process it undertook upon learning about the positive tests.

The global drug-fighting organization said it also had been given a tip by the U.S. Anti-Doping Agency as early as 2020, before this case arose, about allegations of doping cover-ups in China but that USADA never followed up with evidence.

USADA CEO Travis Tygart called the news of the Chinese positive tests "crushing."

"It's even more devastating to learn the World Anti-Doping Agency and the Chinese Anti-Doping Agency secretly, until now, swept these positives under the carpet by failing to fairly and evenly follow the global rules that apply to