Twenty-three Chinese swimmers failed doping tests for the same banned substance ahead of the Tokyo Olympics in 2021 but several of them competed there after not being sanctioned by their country or international authorities. German broadcasters ARD, the New York Times and Australian paper Daily Telegraph said that the governing body World Aquatics, then FINA, and the World Anti-Doping Agency (WADA) were satisfied with the Chinese explanation of contaminated food after looking into the matter. WADA said in response on Saturday it conducted a review process over several weeks and eventually “was…