Conrad M. Cariño
The rivalry between Muhammad Ali, Joe Frazier, George Foreman and even Ken Norton made the 1970s the greatest era in the heavyweight division. And if there is anything Ali should be thankful for, it is the presence of Frazier, Foreman and Norton, and even Earnie Shavers and Jerry Quarry during his era, because without those prolific fighters, he would not have established himself as “The Greatest.”