Rocco Francis Marchegiano (September 1, 1923 – August 31, 1969), best known as Rocky Marciano, was an American professional boxer who competed from 1947 to 1955, and held the world heavyweight title from 1952 to 1956.
Marciano, 29, faced the World Heavyweight Champion, 38-year-old Jersey Joe Walcott, in Philadelphia on September 23, 1952. Walcott dropped Marciano in the first round and steadily built a points lead. In the 13th, Walcott used his trademark feint to set up his right hand, but Marciano’s “Suzie Q” landed first. Marciano landed a glancing right hook as Walcott slumped to his knees with his arm draped over the ropes. He lay motionless long after he had been counted out and Marciano became the new World Heavyweight Champion. At the time of the stoppage, Walcott was leading on all scorecards 8–4, 7–5, and 7–4.