The 1970's produced some of the greatest fighters in the history of professional boxing. Several of the champions in the 1970's including Muhammad Ali, Carlos Monzon, and Roberto Duran were considered by many boxing critics to have been the greatest fighters ever in their respective weight divisions. The Ali versus Frazier 1 fight in 1971 was called the Fight of the Century and it paved the way for other million dollar purses for fighters...