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
Light heavyweight Light heavyweight Light heavyweight, or junior cruiserweight, is a weight class in combat sports. In amateur boxing, light heavyweight is a weight division above and up to , falling between middleweight and heavyweight. In professional boxing, the division is above and up to , falling between super middleweight and cruiserweight. The light-heavyweight class has produced some of boxing's greatest champions: Bernard Hopkins (who, upon becoming champion, broke the record for oldest man to win a world title), Tommy Loughran, Billy Conn, Joey Maxim, Archie Moore, Michael Moorer, Bob Foster, Ann Wolfe, Michael Spinks, Dariusz Michalczewski, Roy Jones, Jr., Joe Calzaghe