Ben Johnson (Benjamin Sinclair) from Jamaica played for Canada, born on December 30, 1961, won two Olympic bronze medals & an Olympic gold medal, which was later revoked. He set repeated 100 meters world records in the 1987 World Championships in Athletics and the Summer Olympics 1988, but he was disqualified as caught in doping, losing the Olympic title and both records as well.
Johnson's first international success came when in 1982 Commonwealth Games in Brisbane, Australia won two silver medals, in 1983 World Championships in Helsinki at finished at 6th in 10.44 time, at 5th in 1983 Pan American Games in Caracas in the 100 m in 10.25.
Olympic win and subsequent prohibition
On September 24, 1988, Johnson became the 1st sprinter from Canada since Percy Williams in 1928 to win the 100m final of Summer Olympics in Seoul, betting his own world record to 9.79 seconds. However, Park Jong-sei of the Olympic Doping Control Center confirmed that Johnson's blood and urine samples contained stanozolol, and he was disqualified three days later from the world record. later on he admitted having used steroids when he ran his 1988 world record, which caused the IAAF to void that record as well.
He was unsuccessful to qualify for the 1991 World Championships in Tokyo .He missed medal in 100 meter finals at the Olympics however, finishing at last in his semi-final after stumbling out of the blocks.
On 7thjan 1993, he won the 50 meters in Grenoble, France, in 5.65 seconds, just 0.04 seconds far of the world record. He was found guilty of doping for excess banned testosterone present in body and was subsequently banned for life by the IAAF.