On This Day – September 21, 1955 Rocky Marciano endured one of the toughest battles of his career, defeating Archie Moore at Yankee Stadium to retain the heavyweight championship of the world. The Brockton Blockbuster was floored in the second round by Moore’s sharp right hand but rose to his feet and turned the tide. From there, Marciano’s relentless pressure wore down the 38-year-old light-heavyweight champion. He sent Moore to the canvas three times (a fourth ruled a slip) before finally fini