Usain Bolt
Usain Bolt confirmed himself as the greatest sprinter in history after winning the 100 metres, 200 metres and 4x100 metres relay gold medals for the third straight Olympics. 
In his career he has completed the sprint treble an amazing six times at global events, also achieving the feat at the 2008 and 2012 Olympic Games and 2009, 2013 and 2015 World Championships.
He has now won 20 world and Olympic gold medals and is thefirst man to hold both 100 and 200 metres world records since automatic timing began in 1977.
Usain Bolt | Laureus