1963 Sonny Liston vs. Floyd Patterson II Ticket Stub Las Vegas Convention CenterListon vs. Patterson II July 22, 1963 at the Las Vegas Convention Center ticket stub Sonny Liston and Floyd Patterson fought twice for the world's heavyweight title. Liston knocked Patterson out in both fights, in the first round each time, winning and defending the championship in dominant fashion. This ticket stub is from their second bout Excellent condition. Perforated entry rip is clean with no additional material loss. Minor handling wear along