China’s anti-doping agency has said the 23 athletes tested positive for an “extremely low concentration” of trimetazidine at a national swimming competition in 2021. Trimetazidine has the potential to boost endurance and has been banned by the World Anti-Doping Agency (WADA) since 2014. “We can’t comment on the reported federal law enforcement investigation,” Travis Tygart, the CEO of the US Anti-Doping Agency, said in a statement to CNN Thursday. World Aquatics Executive Director Brent Nowicki attends a news conference during the 20th World Aquatics Championships at the Marine Messe in Fukuoka, Japan, on July 13, 2023. CNN has reached out to World Aquatics, the Department of Justice and WADA for comment on the news about the investigation.

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Persons: CNN —, Brent Nowicki, Nowicki, ”, Trimetazidine, WADA, ” Travis Tygart, ” Tygart, Tygart, Witold Bańka, “, …, ” WADA Organizations: CNN, CNN — Swimming’s, Associated Press, The New York Times, ARD, Doping Agency, House, FBI, Justice Department, Aquatics, Marine Messe, Mondadori, CHINADA, Tokyo Games, Department of Justice Locations: Tokyo, trimetazidine, China, United States, Fukuoka, Japan