Usain St. Leo Bolt, born 21 August 1986), is a Jamaican sprinter. He is regarded as the fastest person ever timed. He is the first man to hold both the 100 and 200 meter world records. He also holds the world record in the 100-relay. Let’s see what happens in Brazil.
Bolt was born with scoliosis, a curvature of the lower spine, which makes him more susceptible to back pain and injuries.