He retired undefeated, is that enough for top 10 HW.
List of fighters who would go through Marciano’s resume undefeated:
Liston
Foreman
Patterson
Ali
Frazier
Norton
Shavers
Holmes
Tyson
Lewis
Holyfield
Vitali
Waldimir
Louis
Bowe
Tua
List of fighters who would go through Marciano’s resume undefeated:
Liston
Foreman
Patterson
Ali
Frazier
Norton
Shavers
Holmes
Tyson
Lewis
Holyfield
Vitali
Waldimir
Louis
Bowe
Tua
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