Evander Holyfield vs. Lennox Lewis in a rematch with Bowe, but then lost the titles in his first defense against southpaw Michael Moorer. Shortly after, Lewis lost his WBC heavyweight title to Oliver McCall, putting a Holyfield–Lewis unification bout on hold for several years. By 1996, the four heavyweight titles were separated, partly due to the IBF and WBA stripping George Foreman of their heavyweight titles, though he continued to be recognized as the "lineal" heavyweight champion. Meanwhile, Bruce Seldon defeated Tony Tucker to win the vacant WBA title, while Moorer regained the vacant IBF Heavyweight title he had lost to Foreman by defeating Axel
Heavyweight boxing championship records and statistics only universally recognized form of a world championship until July 2, 1921, when Jack Dempsey became the inaugural NBA Heavyweight Champion. The growing popularity of boxing led to a birth of various regional sanctioning organizations, with each recognizing their own champion. The major governing bodies were the National Boxing Association, formed in 1921, the New York State Athletic Commission, found after the Walker Law legalized prizefighting in New York in 1920, and the International Boxing Union, created in 1911 in Paris in attepmt create a unified international governing body for professional boxing. Both NBA and NYSAC made then-lineal champion Jack