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
ECW World Heavyweight Championship at One Night Stand 2006. Heyman had originally stated that either the WWE Championship or the World Heavyweight Championship would "become" the ECW World Heavyweight Championship if a competitor designated to the ECW brand became WWE Champion or World Heavyweight Champion at the event. However, Rob Van Dam later declared that he would hold both titles simultaneously instead. The title became known as the ECW World Championship in June 2006, and later simply as the ECW Championship in August 2007. Following the events of the WWE brand extension, an annual WWE draft was established, in which select members of the