Ujah’s B-sample tests positive, case referred to CAS By webmaster - September 14, 2021 275 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 Dubois wants Usyk trilogy fight: ‘We’re coming out on top this time!’ Sports Van Gerwen suffers another early exit as Van Veen makes history and Price wins Sports Van Gerwen suffers another early exit as Van Veen makes history