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. Marvis Frazier Mike Tyson vs. Marvis Frazier Mike Tyson vs. Marvis Frazier was a professional boxing match contested on July 26, 1986. The fight is notable for being the quickest knockout victory of Tyson's professional career, lasting only 30 seconds. The undefeated Mike Tyson had built his record up to 24–0, including 9 wins in 1986 alone. With Tyson now ranked at number two on the WBC heavyweight rankings, his next opponent became Marvis Frazer, son of former heavyweight champion Joe Frazier. Frazier had been an up-and-coming prospect, but in his first high-profile fight, had been knocked out in the first round