American heavyweight boxing champion (1923-1969)
Rocky Marciano (1 September 1923 – 31 August 1969), born Rocco Francis Marchegiano, was the heavyweight boxing champion of the world from 1952 to 1956. Marciano, with forty-four knockouts to his credit (an 87.8% knockout rate), remains the only heavyweight champion in boxing history to retire without a defeat or a draw in his professional career of 50 fights, however his amateur record is 8-4; 7 victories came by way of knockouts. He fought 7 championship fights. Rocky Marciano's boxing career lasted from 1946 to 1956.
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