Who is the only World Heavyweight Boxing champion to retire undefeated?
Rocco Marchegiano Rocky Marciano The Brockton Blockbuster Brockton Bomber Marciano, Rocky Rocco francis marchegiano The Brockton Bomber Brockton Blockbuster Rocco Francis Marchegiano
rocco francis marchegiano rocky marciano brockton bomber marciano rocky brockton blockbuster rocco marchegiano
rocky marciano
WikipediaEntity
Rocky Marciano