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
Boxing in the United States in newspapers and access on major television networks. Also the lack of a US Heavyweight world champion. It was hoped in 2015 that the Floyd Mayweather Jr. vs. Manny Pacquiao fight would re-invigorate interest in the sport in the United States but because the fight was disappointing it was perceived as doing further harm to the image of the sport in the United States. Boxing in the United States Boxing's origins began in the United States in 19th Century. The United States became the center of professional boxing in the early 20th century. The sport of boxing came to the