Biography
Rocky Marciano (born Rocco Francis Marchegiano; September 1, 1923 – August 31, 1969) was an American professional boxer who held the world heavyweight title from September 23, 1952 to April 27, 1956. Marciano went undefeated in his career and defended his title six times, against Jersey Joe Walcott, Roland La Starza, Ezzard Charles (twice), Don Cockell, and Archie Moore. Marciano had a short, blazing career usually accustomed to pressure fighters. Known for his relentless style, incredible stamina, and an iron chin, Marciano has been ranked by many boxing historians as one of the best heavyweight boxers of all time. He was also known for his ferocious punching power for a man of just 190 pounds; his knockout percentage of 87.75 is one of the highest in heavyweight history. https://en.wikipedia.org/wiki/Rocky_Marciano