Usain Bolt to make retirement decision after 2016 Olympics

World and Olympic 100m and 200m champion Usain Bolt says he has been discussing retirement with his coach.

However, the Jamaican star is undecided whether it will come after the 2016 Olympic Games in Rio, or a year later following the World Championships in London.

Bolt, whose preparations for Rio 2016 will begin next week, says he wants to successfully defend his Olympic titles for a second time, and only then will he consider himself a "legend" in his sport.