Swimming: Sun's doping ban referred back to CAS after appeal

FILE PHOTO: Chinese swimmer Sun Yang poses after a public hearing of the Court of Arbitration for Sport (CAS) for the appeal filed by the World Anti-Doping Agency (WADA) against him and the Federation Internationale de Natation (FINA), at the Conference Centre of the Fairmont Le Montreux Palace, in Montreux, Switzerland November 15, 2019. REUTERS/Denis Balibouse

(Reuters) - Chinese swimmer Sun Yang has had his eight-year ban for doping violations referred back to the Court of Arbitration for Sport (CAS) after an appeal to a Swiss court, the World Anti-Doping Agency (WADA) said.

The decision could potentially clear the way for Sun to compete at next year's delayed Tokyo Olympics, depending on when the case is heard.