Mike Tyson vs. Tyrell Biggs, billed as The Clash for the Crown, was a professional boxing match contested on October 16, 1987, for the undisputed heavyweight championship, which consists of the WBA, WBC and IBF heavyweight titles.

Mike Tyson vs. Tony Tucker, billed as The Ultimate, was a professional boxing match contested on August 1, 1987 for the WBA, WBC, and IBF heavyweight championships.