30 July 2012 Last updated at 18:37

Olympic judo: Disqualification secures gold for Kaori Matsumoto

Japan's world number one Kaori Matsumoto overcame Corina Caprioriu to secure gold in the women's -57kg event.

The 2010 world champion, who now plans to retire, won it on a golden score when the Romanian was disqualified for attacking through the back of the legs.

Britain's Sarah Clark lost her first-round contest to a golden score against eventual bronze medal winner France's Automne Pavia.

Watch the whole event on BBC Sport's Interactive Video Player.

Available to UK users only.