Ujah’s B-sample tests positive, case referred to CAS By webmaster - September 14, 2021 268 0 British sprinter CJ Ujah’s B-sample has tested positive and his case will be referred to the Court of Arbitration for Sport. RELATED ARTICLES Sports F1 teams expect mid-October decision on Qatar, Abu Dhabi GPs Sports Fury vs AJ venue and date confirmed Sports Azerbaijan GP: Lindblad crashes and causes red flag in second practice LIVE!