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Rocky Marciano's Legendary 49-0 Record: For It To Be Truly Broken, Must It Be A Reigning Heavyweight Champion Who Reaches 50-0? - Boxing News 24/7
If Rocky Marciano made his professional debut in 1985, would he still have retired as champion with an undefeated record? - Quora
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The Professional Fighting Record of Rocky Marciano : Paul (Lawrence Berkeley National Laboratory, : 9780955668807 : Blackwell's
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