George Foreman is one of the most famous boxers of the last quarter of the twentieth century. He was an Olympic gold medalist and a two-time world heavyweight champion, besting undefeated reigning world champion Joe Frazier in a 1973 second-round knockout for his first heavyweight title victory. He twice defended the belt before losing it to one of the all-time greats of boxing, Muhammad Ali in 1974's historic Rumble In the Jungle match in Zaire.