Ujah’s B-sample tests positive, case referred to CAS By webmaster - September 14, 2021 252 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 Next darting superstar? Coates, 20, wins maiden PDC title Sports Mandhana fires Manchester Super Giants to victory over SunRisers Leeds Sports Doyle: Opera Ballo the main danger to Bow Echo at Goodwood