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
International Boxing Union (since 1996) World Super Middleweight title fights of Scott "The Sandman" Pemberton and Omar Sheika that became ESPN2's "Fight of the Year" in 2003 and 2004. On 7 April 2012, 7-time multiple weight class World Champion James Toney captured the vacant IBU World Heavyweight championship with a TKO over World Heavyweight Bare Knuckle Championship Holder Bobby Gunn. International Boxing Union (since 1996) The International Boxing Union (IBU) is a professional boxing sanctioning body founded in Atlanta, Georgia, United States, in 1996. It is unrelated to the International Boxing Union, based in Europe, which operated until the Second World War. Although the IBU