Olympic relay silver medallist’s B-sample tests positive

If British 4x100m relay runner Chijindu Ujah is charged with a doping violation, his entire team will be stripped of their medals and team Canada will be upgraded to silver

Former Olympic hurdles champion receives 5-year ban for doping

2016 100m hurdles Olympic champion Brianna Rollins-McNeal may not be at the Tokyo or Paris Games

CAS to hear appeal from Alberto Salazar

The former coach of the Nike Oregon Distance Project is appealing his 4-year suspension at the Court of Arbitration for Sport, less than two years after being banned from coaching