The trunks Muhammad Ali wore in his 1974 Rumble in the Jungle fight against George Foreman will sell at Grey Flannel Auctions.
They're offered with an opening bid of $30,250.
 Ali's 1974 bout against Foreman in Zaire was one of the biggest fights of all time |
The fight was held in Zaire (now the Democratic Republic of Congo), which was then under the control of dictator Mobutu Sese Seko.
It ended in a spectacular victory for Ali, who knocked out Foreman (then the undefeated world heavyweight champion) in the eighth round.
Ali spent a couple years in the wilderness after he was beaten by Joe Frazier in 1971.
The Rumble in the Jungle bout marked a return to form, showcasing his technical mastery.
He utilised his now famous "rope-a-dope" technique to tire out the much more physically powerful Foreman, before delivering the finishing blow.
The trunks were last sold at auction for $57,500 in 1997, a figure they look likely to exceed by a considerable margin when the auction ends on May 25.
The inner label reads: "EVERLAST - MADE IN U.S.A. - Made Expressly For MUHAMMAD ALI".
Ali's gloves from his 1965 "Phantom Punch" bout against Sonny Liston realised a boxing memorabilia record $965,000 in a 2015 sale at Heritage Auctions.
We have a striking Muhammad Ali-signed artwork for sale.
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