LAUSANNE: Usain Bolt has been stripped of one of his nine Olympic gold medals in a doping case involving teammate Nesta Carter. The IOC says Carter tested positive for methylhexaneamine, a banned stimulant, in re-analysis of samples from the 2008 Beijing Olympics. Carter and Bolt were teammates on the winning 4x100-meter relay team. The IOC says 'the Jamaican team is disqualified,' and 'the corresponding medals, medalist pins and diplomas are withdrawn and shall be returned.'