Michael Gerard "Mike" Tyson (born June 30, 1966) is an American boxer. Tyson was the undisputed heavyweight champion and holds the record as the youngest boxer to win the WBC, WBA and IBF world heavyweight titles. He won the WBC title when he was 20 years, 4 months and 22 days old, after defeating Trevor Berbick by a TKO in the second round. Throughout his career, Tyson became well-known for his ferocious and intimidating boxing style as well as his controversial behavior both inside and outside the ring.
He was the first heavyweight boxer to hold the WBA, WBC and IBF titles simultaneously. Tyson is considered to have been one of the better heavyweight boxers of all time.[1] He is also the only Heavyweight boxer to individually unify the WBC, WBA and IBF titles.
Nicknamed "Iron Mike"[2] and "The Baddest Man on the Planet",[3] Tyson won his first 19 professional bouts by knockout, with twelve of them occurring in the first round. He unified the belts in the splintered heavyweight division in the late 1980s to become undisputed heavyweight champion of the world. Tyson became the lineal champion when he knocked out Michael Spinks in the first 91 seconds of the fight. Tyson lost his titles to 42-to-1 underdog Buster Douglas on February 11, 1990, in Tokyo, Japan, by a knockout in round 10.
In 1992, Tyson was convicted of sexually assaulting Desiree Washington, for which he served three years in prison. After being released from prison in 1995, he engaged in a series of comeback fights. He regained a portion of the heavyweight title, before losing it to Evander Holyfield in a 1996 fight by an 11th round TKO. Their 1997 rematch ended when Tyson was disqualified for biting off part of Holyfield's ear. He fought for a championship again at 35, losing by knockout to Lennox Lewis in 2002. Tyson retired from professional boxing in 2006 after he was knocked out in consecutive matches against Danny Williams and Kevin McBride.
Tyson declared bankruptcy in 2003, despite receiving over US$30 million for several of his fights and $300 million during his career. He is ranked #16 on Ring Magazine's list of 100 greatest punchers of all time.[4]
http://en.wikipedia.org/wiki/Mike_Tyson