Professional boxing knocked him out in brutal fashion. This fight made Hagler famous; he was able to lure Ray Leonard out of retirement in 1987, but lost in a highly-controversial decision. Hagler retired from boxing immediately after that fight. In the latter half of the decade young heavyweight Mike Tyson emerged as a serious contender. Nicknamed "Iron Mike", Tyson won the heavyweight unification series to become world heavyweight champion at the age of 20 and the first undisputed champion in a decade. Tyson soon became the most widely known boxer since Ali due to an aura of unrestrained ferocity, such as that
Billy Gibson (boxing) Billy Gibson (boxing) William J. Gibson (1876–1947) was a boxing promoter and manager for Benny Leonard (a former Lightweight champion), Gene Tunney (a former Heavyweight champion), Paulino Uzcudun, and featherweight Louis Kaplan. He was also the owner of the short-lived New York Brickley Giants of the National Football League. Gibson began his career in boxing as a promoter in Bronx. He teamed up with Leonard in 1914 and was his manager up until the 1917 lightweight championship. In 1923, Gibson became the manager of Tunney, who would go on to win the heavyweight title. Gibson retired in 1928. Gibson also