3) Usain Bolt (Jamaica)
The 29-year-old sprinter has been in the news as he is currently nursing an injury in his grade one hamstring tear in Germany. The 11-time world champion in sprinting has already announced that Rio Olympics will be his last Games. Therefore, he features in our list over the likes of Justin Gatlin, who at 34, might also be participating in his last Olympic Games.
Bolt has won a tally of 6 gold medals at the Olympics so far. In Beijing 2008, he won his first three golds in the 100m, 200m and the 4x100m relays. He was able to defend all the three medals at the London 2012 Olympics. The Jamaican will be looking to bag a hattrick of gold medals in all the three categories, making him the first athlete to do so. The fastest man on the planet will be looking to end his Olympic career with a high in Rio.