Lenz & Staehelin represented the World Anti-Doping Agency

Lenz & Staehelin represented the World Anti-Doping Agency (WADA) as a defendant in three setting aside proceedings before the Swiss Supreme Court. The setting aside proceedings concerned three decisions taken by the Court of Arbitration for Sport (CAS) during the CAS arbitration proceedings opposing WADA  to a well-known Chinese Olympic swimmer, Sun Yang, and the Fédération Internationale de Natation (FINA) in relation to a decision of a doping panel of FINA. In the proceedings before the Swiss Supreme Court Sun Yang sought to challenge the composition of the CAS Panel and its jurisdiction.