Gay has since been given a provisional suspension by Usada while the investigation into his case continues. It is understood that in addition to the positive sample he gave at the US trials, he failed an out-of-competition test in May.Īfter being informed of his first failed test, the 30-year-old athlete pulled out of the American team selected for the World Athletics Championships, which were held in Moscow earlier this month. Usada refused to comment on whether Gay had tested positive for a steroid.īut the agency confirmed on 27 July that the 2007 world 100m champion failed at least two tests.
These are known as precursors of testosterone. Under the Wada code, the standard ban for an athlete found guilty of taking a prohibited steroid is two years - the maximum punishment currently available.Ī carbon isotope test, also known as an IRMS test, is normally used by anti-doping authorities to detect the banned steroid testosterone or closely related substances such as DHEA or androstenedione.
