Born on June 30, 1966, Mike Tyson is a retired American professional boxer. Tyson is a former undisputed heavyweight champion of the world & holds the record as the youngest boxer to win the WBC, WBA & IBF heavyweight titles at 20 years, 4 months, & 22 days old. Tyson won his first 19 professional bouts by TKO in the second round. In 1987, Tyson added the WBA & IBF titles after defeating James Smith & Tony Tucker. He was the first heavyweight boxer to simultaneously hold the WBA, WBC & IBF titles, & the only heavyweight to successfully unify them.