Became the youngest heavyweight champion in history at age 20 in 1986.
Known for his ferocious knockout power, winning his first 19 professional fights by knockout, 12 in the first round.
After prison, regained WBC and WBA heavyweight titles in 1996.
Inducted into the International Boxing Hall of Fame and the World Boxing Hall of Fame in 2011.
Transitioned to film and television, appearing in movies and launching a one-man show.
Known for his love of pigeons and has owned several tigers as pets.
Returned to the ring for an exhibition fight against Roy Jones Jr. in 2020, which ended in a draw.