Trevor Berbick was a Jamaican professional boxer who competed from 1976 to 2000. He won the WBC heavyweight title in 1986 by defeating Pinklon Thomas, then lost it in his first defense in the same year to Mike Tyson. Berbick was the last boxer to fight Muhammad Ali, defeating him in 1981 by unanimous decision. World heavyweight champion (WBC) from March 22, 1986 to November 22, 1986. Wiki link