A three-piece set of items signed by legendary Muhammad Ali and his opponents. Each of the items is matted and the signatures have been authenticated by PSA. The lot includes: A promotional poster for the fight between Ali and Leon Spinks at the Louisiana Superdome in 1978. The poster is signed by Ali in blue Sharpie and by Spinks in ink; copy of the March 1, 1971 Sports Illustrated issue that features a painting of Ali fighting Joe Frazier. The issue is signed by both boxers; copy of the October 28, 1974 issue of Sports Illustrated that features a painting of headshots of Ali and Foreman. The issue is signed by both boxers.