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 vs. Carl Williams Mike Tyson vs. Carl Williams Mike Tyson vs. Carl Williams was a professional boxing match contested on July 21, 1989, for WBA, WBC, IBF and "Lineal" Heavyweight championships. After Tyson's dominating victory over Frank Bruno five months prior, negotiations for a potential bout with Carl Williams began, and on June 15, 1989, the fight was made official. Four years earlier, Williams had challenged then-IBF Heavyweight champion Larry Holmes for the title, only to narrowly lose by unanimous decision. Prior to his fight with Tyson, Williams had won his previous five fights, including a victory over former champion Trevor Berbick which