During his time at Oklahoma, King averaged 17.6 points, 7.2 rebounds, and 2.0 blocked shots per game in 114 total appearances. Selected by the Bulls in the first round (sixth overall) of the 1989 NBA Draft, King would eventually be named to the NBA All-Rookie Second Team in 1990 as a member of the Bulls, shortly before helping them win three consecutive championships.He later continued his professional career with the Minnesota Timberwolves, Miami Heat, Boston Celtics, and Dallas Mavericks.

Across 438 career regular season NBA games, King averaged 6.4 points, 3.3 rebounds, and 0.9 assists per game.