George Foreman
Even amongst the legends of the heavyweight division, “Big” George Foreman stands out. He was an Olympic gold medalist, and won his first world title by upsetting Smokin’ Joe Frazier in 1973.
In his youth, and even later in his career, Foreman was known as an absolutely devastating puncher. He was also a heavy favorite against Muhammad Ali in the “Rumble in the Jungle” heavyweight title bout contested in the Congo, before being upset in stunning fashion. Soon after, Foreman retired from the sport only to come back a decade later in 1994, and at 45 years old became the oldest man in history to win a heavyweight title.