Mike Tyson vs. Brian Nielsen Originally, Tyson was rewarded with a technical knockout victory, but it was later changed to a no-contest in January 2001 after a post-fight drug test revealed that Tyson had tested positive for marijuana. Just days before Tyson's positive test became known to the public, he was also issued a three-month suspension by the State of Michigan, which the Nevada Athletic Commission agreed to uphold, though the suspension had little effect on Tyson's boxing schedule as he had already announced his intentions to take those three months off. After serving the suspension, Tyson's next fight was initially going to be against
Mike Tyson the planet" and arguably the most feared boxer in professional boxing at that time, has been described as one of the most shocking upsets in modern sports history. After the loss, Tyson recovered with a first round knockouts of Henry Tillman and Alex Stewart in his next two fights. Tyson's victory over Tillman, the 1984 Olympic heavyweight gold medalist, enabled Tyson to avenge his amateur losses at Tillman's hands. These bouts set up an elimination match for another shot at the undisputed world heavyweight championship, which Evander Holyfield had taken from Douglas in his first defense of the title. Tyson,