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
Michael Moorer wasn't considered an authentic heavyweight title. Ironically, Moorer has always been recognized as a former light heavyweight champion despite only ever holding the WBO title at that weight. Moorer's first defense came against Botha on November 9, 1996. In a brutal one-sided bout, Moorer, leading on the cards going into the 12th, ended with a flourish, knocking Botha out with 18 seconds left in the bout. In March 1997, Moorer retained his belt with a 12-round decision over previously undefeated Vaughn Bean before parting ways with trainer Teddy Atlas, with whom he'd been experiencing increasing tension since the beginning of