How would the champions of 50 years ago fare against the champions of 40 years ago?
Heavyweight: Sonny Liston (1962) v Joe Frazier (1972)
Light-Heavyweight: Harold Johnson (1962) v Bob Foster (1972)
Middleweight: Paul Pender (1962) v Carlos Monzon (1972)
Welterweight: Emile Griffith (1962) v Jose Napoles (1972)
Junior-Welterweight: Duilio Loi (1962) v Antonio Cervantes (1972)
Lightweight: Carlos Ortiz (1962) v Roberto Duran (1972)
Featherweight: Davey Moore (1962) v Clemente Sanchez (1972)
Bantamweight: Eder Jofre (1962) v Ruben Olivares (1972)
Flyweight: Fighting Harada (1962) v Erbito Salavarria (1972)
Heavyweight: Sonny Liston (1962) v Joe Frazier (1972)
Light-Heavyweight: Harold Johnson (1962) v Bob Foster (1972)
Middleweight: Paul Pender (1962) v Carlos Monzon (1972)
Welterweight: Emile Griffith (1962) v Jose Napoles (1972)
Junior-Welterweight: Duilio Loi (1962) v Antonio Cervantes (1972)
Lightweight: Carlos Ortiz (1962) v Roberto Duran (1972)
Featherweight: Davey Moore (1962) v Clemente Sanchez (1972)
Bantamweight: Eder Jofre (1962) v Ruben Olivares (1972)
Flyweight: Fighting Harada (1962) v Erbito Salavarria (1972)
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