.@manteomitchell on breaking a leg in the 4 x 400m

US athlete Manteo Mitchell fractured his leg during Thursday's 4 x 400m Olympic race, but still managed to finish in a pretty good time of 46.1 seconds, helping his team to qualify. He tells Newshour's Jamie Coomarasamy of the moment it happened and what the injury will mean for his team and his career. #Olympics #London2012