The only heavyweight boxing champion to retire undefeated, he held the title from 1952-1956.
- Mohammad Ali
- Max Baer
- Sonny Liston
- Rocky Marciano
The only heavyweight boxing champion to retire undefeated, he held the title from 1952-1956.
Rocky Marciano who was born Rocco Marchegianon. His last name was changed when a ring announcer was unable to pronounce it. After his retirement as a boxer, Marciano hosted a boxing show on TV and served as a referee and a commentator. He died in a plane crash the day before his 46th birthday.