Athletes Gay, Powell and Simpson fail drug tests
US sprinter Tyson Gay and Jamaica's Asafa Powell and Sherone Simpson have failed drug tests.
Gay, 30, the joint-second fastest man over 100m, was notified by the US Anti-Doping Agency on Friday that his A sample from an out-of-competition test in May had returned a positive.
Powell tested positive for a banned stimulant while competing in June's Jamaican championships. Simpson also failed a drug test at the event.
All three have issued statements to say they took the substances unintentionally.
Nick Davis reports from Kingston, Jamaica.
15 Jul 2013
- From the section US & Canada