Britain's Anthony Joshua beats world champ to secure medal

British super-heavyweight Anthony Joshua says "learning and listening" led him to his victory over world and Olympic champion Roberto Cammarelle to reach the semi-finals of the World Championships.

Joshua beat veteren Cammarelle 15-13 in his first ever World Championships as GB secured at least four bronze medals. The victory also means Joshua has qualifed for the 2012 Olympics.

The semi-finals begin at 1100 BST on Friday 7 October.