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. Donovan Ruddock II Greg Page and Phil Jackson. This would set up a match with Lennox Lewis for the right to face the winner of the Evander Holyfield–Riddick Bowe fight for the Undisputed Heavyweight Championship. Ruddock would end up being knocked out by Lewis in the 2nd round, costing him a chance at the title and effectively ending his status as one of boxing's premier heavyweights. Mike Tyson vs. Donovan Ruddock II Mike Tyson vs. Donovan Ruddock II, billed as "The Rematch", was a professional boxing match contested on June 28, 1991. Three months earlier, Tyson and Ruddock, who were boxing's number one