After a stand-out career at the University of Oklahoma, King was selected by the Bulls in the 1989 NBA Draft with the sixth pick. He was one of three first round picks by the Bulls in that draft (the other two were B.J. Armstrong and Jeff Sanders). He was another highly touted center drafted by Jerry Krause that failed to live up to expectations, like Brad Sellers and Will Perdue before him. There he played four and a half seasons before being traded during the 1993-94 campaign to the Minnesota Timberwolves in exchange for 7'2" Australian-born center, Luc Longley. He was last active during the 1996-97 season while playing a handful of games for both the Dallas Mavericks and Boston Celtics.