5 Most Famous Drug Cheats In Sports

4. Tyson Gay Gay has been a world champion in athletics three times. He has a sensational personal best time of 9.69 in the 100m which means he is the second fastest man in history. Gay was also the closest rival to Bolt for this year's World Championships in Moscow although he has now had to pull out of the championships. Gay is the only man to have beaten Usain Bolt in a major athletics final without Bolt being disqualified. On the same day which Powell announced his positive drug test, Gay also gave a double blow to the sport by announcing he too had tested positive. Gay did not specify the substance and blamed it on a third party, but his sponsorship deal with Adidas was suspended regardless.

"I don't have a sabotage story. I don't have any lies. I don't have anything to say to make this seem like it was a mistake or it was on Usada's hands, someone playing games," he said. "I don't have any of those stories. I basically put my trust in someone and I was let down." - Tyson Gay