Oliver McCall Oliver McCall Oliver McCall (born April 21, 1965) is an American former professional boxer who competed from 1985 to 2014. He is best known for winning the WBC heavyweight title in 1994 by scoring an upset knockout victory over Lennox Lewis. The next year he defended the title against Larry Holmes before losing it to Frank Bruno. McCall would also become known for an in-ring mental breakdown during his 1997 rematch with Lewis. Known as "The Atomic Bull", McCall turned pro in 1985 and slowly worked his way up the heavyweight ranks. He beat Jesse Ferguson and future heavyweight champion
Julio Gervacio title, Gervacio nevertheless reeled off ten straight wins after that defeat. Among the boxers he beat during that streak were some top ranked fighters such as Julio Soto Solano, Pepillo Valdez, Lee Cargle and Lorenzo Tiznado, among others. When given another chance to win a world title on March 11 of 1995, he lost to WBC Super Bantamweight incumbent Hector Acero Sanchez by a twelve round unanimous decision. His next fight on March 25, 1996 against Sergio Pena was his debut in his birth country and it was for the Dominican Super Bantamweight title. It resulted in a lost after