Referee Zack Clayton, right, steps in after Muhammad Ali knocked down defending heavyweight champion George Foreman in the eighth round of their championship bout on Oct. 30, 1974, in Kinshasa, Zaire.

George Foreman, Muhammad Ali inspire celebration. Former boxing champions George Foreman, left, and Muhammad Ali on stage at the 69th annual Academy Awards, in 1997.

George Foreman, Muhammad Ali inspire celebration. Former boxing champions George Foreman, left, and Muhammad Ali on stage at the 69th annual Academy Awards, in 1997.

Boxing great George Foreman, heavyweight champion who fought Muhammad Ali in the epic 'Rumble in the Jungle' before becoming an entrepreneur, dies at 76.

Even on the airplanes, they announced Muhammad Ali had beaten George Foreman. Everyone here in America, older people, remembers where they were when Kennedy was assassinated and when Ali beat Foreman.

George Foreman, the sleek, surly boxer who tangled with Muhammad Ali in the epic "Rumble in the Jungle" heavyweight championship fight before embarking on a lifetime of reinventions as a minister ...

With the exception of George Foreman, Muhammad Ali fought all of his big-fight rivals more than once. The Sporting News takes a deep dive into the reasons why a sequel to The Rumble in the Jungle ...

George Foreman, the sleek, surly boxer who tangled with Muhammad Ali in the epic "Rumble in the Jungle" heavyweight championship fight before embarking on a lifetime of reinventions as a minister ...

A 1974 poster for the World Heavyweight Championship Fight between Muhammad Ali vs. George Foreman. The top of the poster has black text that reads [From Slaveship to Championship]. Below that text, ...

LOS ANGELES — George Foreman, the sleek, surly boxer who tangled with Muhammad Ali in the epic “Rumble in the Jungle” heavyweight championship fight before embarking on a lifetime of ...