7 August 2012 Last updated at 17:33

Olympic cycling: Laura Trott races to stunning omnium gold

Great Britain's Laura Trott produces a superb display in the final event of the omnium to take gold ahead of the United States' Sarah Hammer.

Having claimed gold in the women's team pursuit on Saturday, Trott is now a double Olympic and world champion.

Watch a full replay of the track cycling via the BBC Interactive Video Player.

Available to UK users only.