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. Clifford Etienne Mike Tyson vs. Clifford Etienne Mike Tyson vs. Clifford Etienne, billed as "Back to Business", was a professional boxing match contested on February 22, 2003. In his previous fight on June 8, 2002, Mike Tyson had met WBC and IBF heavyweight champion Lennox Lewis. In what would prove to be the final title match of Tyson's career, he was thoroughly outboxed by Lewis, who from the second round on, won every round on the judge's scorecards before knocking out Tyson in the eighth. Though Tyson's plans were not immediately known after his defeat, he announced in November that he would