Championship belt, boxing trunks among Muhammad Ali items up for auction

He was known as "The Greatest" and now items once owned by the legendary Muhammad Ali can be yours.

The Heritage Auctions will auction Ali's 1974 WBC heavyweight championship boxing belt and a handwritten letter about his conversion to Islam

Also up for grabs are the trunks Ali wore for his "Rumble in the Jungle" victory over George Foreman, and the gloves worn by Sonny Liston when he lost his title to Ali.

It's the biggest auction since Ali's death in June.

For more information on the auction, click here.