Olympic relay medals in jeopardy

The International Olympics Committee will have the final say on whether Tyson Gay's 4x100m relay teammates will be stripped of their London Games medals in the wake of the sprinter's doping ban, the IAAF said.

Gay received a one-year suspension on Friday after testing positive for a banned anabolic steroid in 2013. All his results from July 2012 onwards have been wiped out and he has already returned his relay silver medal to the US Olympic Committee.

Still to be determined is whether his teammates - Trell Kimmons, Justin Gatlin and Ryan Bailey - will also lose the silver medals they won at the 2012 London Games.