Sarah Stevenson clinches gold at the Taekwondo World Championships

Olympic taekwondo bronze medallist Sarah Stevenson has decided to retire, the Briton, 30, who competed at four Games and was third at Beijing in 2008, will become GB Taekwondo's first-ever female high performance coach.

Stevenson talks to BBC Sport's Nick Hope about her gold medal win over Guo Yunfei of China in the -67kg category at the Taekwondo World Championships in South Korea in 2011.

Read more: Stevenson wins World gold medal