Gatlin faces prospect of life ban

World and Olympic 100m Champion, Justin Gatlin is facing a lifetime ban after confirmation that his B sample tested positive for testosterone.

The American announced on Saturday that he had failed a doping test in April.

And anti-doping chief, Dick Pound, and Gatlin’s lawyer, Cameron Myler, told Five Live on Sunday that the 24-year-old’s B sample also tested positive.

Gatlin’s case is expected to be heard by the United States Anti-Doping Agency hearing next Monday.