Rocky Marciano-50 Greatest Boxers of all time.....
Rocky Marciano (September 1, 1923 – August 31, 1969), born Rocco Francis Marchegiano, was the heavyweight champion of the world from 1952 to 1956. Marciano, with forty-three knockouts to his credit (87.8% knockout rate), remains the only heavyweight champion in boxing history to retire having won every fight in his professional career.
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Rocky Marciano
