The Jamaican sprint team was hit by a doping scandal ahead of the 2009 world championships which saw five members -- not including Bolt -- under scrutiny , and last year their compatriot Steve Mullings was handed a lifetime ban after testing positive for a masking agent . Jamaica sprinter Gay is hoping to prove a point at the 2012 London Olympics . The 2007 triple world champion missed the U.S. 100 meters final after struggling with injury . He is hoping to prevent Jamaica 's world record-holder Usain Bolt defending his one titles . Gay says he wants to be remembered as a clean runner , `` someone who ran with his heart ''
Jamaica sprinter Gay is hoping to prove a point at the 2012 London Olympics . The 2007 triple world champion missed the U.S. 100 meters final after struggling with injury . He is hoping to prevent Jamaica 's world record-holder Usain Bolt defending his one titles . Gay says he wants to be remembered as a clean runner , `` someone who ran with his heart ''