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
NWA World Heavyweight Championship at the ECW Arena in August 1994, which was won by ECW Heavyweight Champion Shane Douglas. After the match, Douglas threw the NWA World Heavyweight Championship belt down and picked up the ECW Heavyweight Championship belt, proclaiming himself ECW World Heavyweight Champion. Almost immediately thereafter ECW withdrew from the NWA and became Extreme Championship Wrestling. Despite this blow to the organization, the NWA held another tournament in November 1994; in Cherry Hill, New Jersey hosted by promoter Dennis Coralluzzo and Smoky Mountain Wrestling. This tournament was won by Chris Candido and the title soon was recognized and defended in such