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. (AP Photo/File)
FILE - Challenger Muhammad Ali is hit with a left jab by defending world champion George Foreman during the WBA/WBC championship bout in Kinshasa, Zaire, on Oct. 30, 1974. (AP Photo, File)
FILE - Muhammad Ali looks down at George Foreman during their bout in Kinshasa, Zaire, Oct. 30, 1974. (AP Photo, File)
FILE - Challenger Muhammad Ali watches as defending world champion George Foreman struggles to keep his balance during the WBA/WBC championship bout in Kinshasa, Zaire, on Oct. 30, 1974. (AP Photo, File)
FILE - Challenger Muhammad Ali, right, watches as defending world champion George Foreman goes down to the canvas in the eighth round of their WBA/WBC championship match, on Oct. 30, 1974, in Kinshasa, Zaire. (AP Photo/Richard Drew, File)
FILE - Challenger Muhammad Ali raises his arms in victory after defending champion George Foreman is counted out by referee Zack Clayton, ending the WBA/WBC championship bout in Kinshasa, Zaire, on Oct. 30, 1974. (AP Photo, File)
FILE - This is a Sept. 22, 1974 file photo of Zaire's President Mobutu Sese Seko, center, as he raises the arms of heavyweight champ George Foreman, left, and Muhammad Ali, right, in Kinshasa, Zaire. (AP Photo/Horst Faas, File)
FILE - Perspiration flies from the head of George Foreman as he takes a right from challenger Muhammad Ali in the seventh round in the match dubbed Rumble in the Jungle in Kinshasa, Zaire on Oct. 30, 1974. (AP Photo/Ed Kolenovsky, File)