Mike Tyson is a former professional boxer who is widely considered to be one of the greatest heavyweight champions of all time. He held the undisputed heavyweight title from 1987 to 1990 and was the first heavyweight boxer to hold the WBA, WBC, and IBF titles simultaneously. Tyson is known for his aggressive style of boxing and his intimidating presence in the ring. He has been inducted into the International Boxing Hall of Fame and the World Boxing Hall of Fame.