Mike Tyson is a retired American professional boxer and a former undisputed heavyweight champion of the world who holds the record as the youngest boxer to win the WBC, WBA and IBF heavyweight titles.
From 1987-1990, he was the undisputed world heavyweight champion conducting a reign of terror in the prize-fighting ring and earning millions of dollars whilst doing it.
He had won the WBC title in November 1986 at the tender age of 20, becoming the youngest heavyweight champion ever. Soon after he claimed the WBA crown from James "Bonecrusher" Smith before beating Tony Tucker for the IBF championship.
Brutal victories against the likes of Pinklon Thomas, Tony Tubbs, Larry Holmes, Tyrell Biggs and Michael Spinks confirmed his status as the best in the world.
However, his life outside the ring was as engrossing as his life in it. A short-lived marriage to actress Robin Givens was followed by a catalogue of personal misfortune that ultimately resulted in him losing his world championship to James "Buster" Douglas in Tokyo in February 1990.
He was jailed for rape in 1992 and released in 1995. A comeback later that same year saw him beat two opponents before regaining the WBC heavyweight crown in March 1996.
He added the WBA crown to his tally by beating Bruce Seldon before getting stopped by the unheralded Evander Holyfield in November 1996. A rematch in June 1997 saw him bite a chunk of Holyfield's ear off - an act that earned him worldwide condemnation.
He has continued to fight on and off; a title challenge in 2002 saw him lose in 8 rounds to Lennox Lewis whilst a routine assignment in July 2004 saw him beaten by another British talent, Danny Williams, in 4 rounds.
His final fight was a loss to Irishman Kevin McBride in 2005, although to most observers it was clear Tyson had absolutely nothing left.
Later he declared bankruptcy and faced a drugs charge, although his status as a cult celebrity still stays strong as well as his boxing legacy.