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
Ruben Castillo (boxer) months later, knocking Miguel Hernandez out in three rounds at Los Angeles. He won five fights in 1984, including a tenth round knockout victory over Andres Felix and a ten round decision win against Oscar Bejines. On April 19, 1985, Castillo received his fourth world title try, when he challenged Julio César Chávez for Chávez's WBC world Jr. Lightweight title, as part of a boxing program that also featured Juan Meza's WBC world Super-Bantamweight title defense against Mike Ayala. Castillo once again lost, when Chávez beat him by a sixth round knockout. His next fight took place in Brazil: trying