US relay team stripped of 2012 Olympic silver medals

Silver medallists Trell Kimmons, Justin Gatlin, Tyson Gay and Ryan Bailey of United States pose with their silver medals at the 2012 London Olympic Games, on August 11, 2012. Photograph: Clive......

PHOTOS: Third gold for Bolt as Jamaica win 4x100 with WR

Usain Bolt ended his London Olympics in glorious style on Saturday with a third gold and a world record as Jamaica won a blistering men's 4x100 metres final but the 'living legend' was uncertain......