Rumble In the Jungle Boxing

FILE – In this Oct. 30, 1974 file photo, referee Zack Clayton, right, steps in after challenger Muhammad Ali looks on after knocking down defending heavyweight champion George Foreman in the eighth round of their championship bout in Kinshasa, Zaire. Ali regained the world heavyweight crown by knockout in the eighth round of the fight dubbed “Rumble in the Jungle.” (AP Photo/File)