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
WCW International World Heavyweight Championship was the first and last titleholder. The WCW International World Heavyweight Championship has its origins in the NWA World Heavyweight Championship, the principal championship of the National Wrestling Alliance (NWA). The NWA was a syndicate of wrestling promotions who would book an overall champion. In 1991, the NWA World Heavyweight Champion was Ric Flair, who held the title when he wrestled for WCW. Flair was simultaneously considered the WCW World Heavyweight Champion; he was stripped of both titles because he left to work for rival company World Wrestling Federation (WWF, now WWE). Lex Luger won the vacant WCW World Heavyweight