Boxing in the 1970s was world champion when Ali returned. Former world champions Jimmy Ellis and Floyd Patterson as well as George Foreman, Oscar Bonavena, Jerry Quarry, Earnie Shavers, Leon Spinks, Ken Norton, as well as Larry Holmes, Ron Stander, Chuck Wepner, Jose King Roman, Light Heavyweight champ Foster, John Tate, Jimmy Young, Ron Lyle, Joe Bugner, Scott LeDoux and many others added intrigue to the division. Don King surged as a leading boxing promoter, and champions Duran, Monzon and Ali had historic rivalries with Esteban De Jesús, Rodrigo Valdez and Frazier, respectively. Boxing in the 1970s During the 1970s, boxing was characterized by
Michael Moorer Swindell, Mike Sedillo and former WBA champion Leslie Stewart, among others. In 1990, he retained the title three times before the end of the year, beating Mario Melo and former Michael Spinks challenger Jim McDonald, among others. 1991 saw Moorer move up to the heavyweight division. He rolled through the competition en route to securing an opportunity to fight for the vacant WBO heavyweight championship the following year against Bert Cooper. Moorer stopped Cooper in the fifth round after both fighters were down and hurt during the bout. He did not defend the lesser regarded WBO heavyweight belt. Moorer and