Olympic swimming champion Sun Yang banned for eight years after Cas ruling
The Chinese swimmer Sun Yang, a multiple Olympic and world champion, has been banned for eight years following a court of arbitration for sport (Cas) ruling released on Friday. Cas upheld an appeal lodged by the World Anti-Doping Agency (Wada) after Fina, the international swimming federation, cleared Sun of wrongdoing over an incident with drug testers in 2018.