Lewis is a three-time world heavyweight champion, a two-time lineal champion, and the last heavyweight to hold the undisputed championship.
Lewis was declared as the WBC heavyweight champion after winning his first 21 professional fights and rising to the number one ranking.
After two fights against Evander Holyfield in 1999, Lewis became undisputed heavyweight champion by unifying his WBC title with Holyfield's WBA and IBF titles, as well as the vacant IBO title.
In 2002, Lewis defeated Mike Tyson in one of the most highly anticipated fights in boxing history.
Lewis defeated Vitali Klitschko in his final fight during 2003. He vacated his remaining titles and retired from boxing in 2004.
Lewis ended his boxing career with 41 wins, two losses and one draw. 32 of his wins were by knockout.