4 August 2012 Last updated at 17:14

Olympics trampoline: Rosie MacLennan wins gold

Canada's Rosie MacLennan takes gold in the women's trampolining final at the London 2012 Olympics from Chinese pair Huang Shanshan and He Wenna.

Defending Olympic gold medallist He Wenna of China appeared to be well on the way to defending her crown until she tumbled at the end of her routine.

Great Britain's Kat Driscoll failed to reach the final after she was knocked out in qualifying by the last competitor American Savannah Vinsant.

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