Day 15 saw the curtain fall on the track and field action at London 2012, and once again it was Usain Bolt who stole the headlines on a day when 32 gold medals were won.
Usain Bolt brought the track and field Athletics action at London 2012 to a fittingly brilliant close on Day 15, anchoring the Jamaican 4 x 100m Relay team to gold in a new world record.
Not content with just becoming a legend, Usain Bolt claimed he is 'the greatest athlete to live' after becoming the first man to win the Olympic Games sprint double twice in succession.