FILE PHOTO - 2016 Rio Olympics - Athletics - Victory Ceremony - Men's 100m Victory Ceremony - Olympic Stadium - Rio de Janeiro, Brazil - 15/08/2016. Gold medalist Usain Bolt (JAM) of Jamaica and silver medalist Justin Gatlin (USA) of USA react. REUTERS/Leonhard Foeger
Jamaican sprinter Usain Bolt
The Jamaican sprinter and three-time Olympic gold medalist will be one of the biggest names to watch at the London Games.