United States 4x100-meter relay runner Ryan Bailey, right, leaps in the air as he walks with teammates as Tyson Gay and Trell Kimmons, left, look on during the athletics in the Olympic Park during the 2012 Summer Olympics, Saturday, Aug. 11, 2012, in London. (AP Photo/Jon Super)
United States 4x100-meter relay runner Ryan Bailey, right, leaps in the air as he walks with teammates as Tyson Gay and Trell Kimmons, left, look on during the athletics in the Olympic Park during the 2012 Summer Olympics, Saturday, Aug. 11, 2012, in London. (AP Photo/Jon Super)
