As assistant coach: As head coach: Derrick Allen Mahorn (born September 21, 1958) is an American former professional basketball player who played power forward and center for the Washington Bullets, Detroit Pistons, Philadelphia 76ers, and the New Jersey Nets of the National Basketball Association (NBA).

Mahorn had a reputation for physical play, and was a member of the late 1980s Detroit Pistons teams known as "The Bad Boys", and with them won the 1989 NBA Championship.

[3] Two days after the Pistons won the championship in 1989, the NBA held an expansion draft for its two newest franchises, the Orlando Magic and Minnesota Timberwolves.

After refusing to report to the Timberwolves, he ended up being traded instead to the Philadelphia 76ers, where he teamed with superstar Charles Barkley (despite previous rivalries with him) to form the top-rebounding duo of "Thump N' Bump".

He started the 1992–1993 season with Roma but was kicked of the team in October after throwing a chair in a heated argument with head coach Paolo Di Fonzo.

Mahorn then served as a color commentator for Pistons radio broadcasts, and as an assistant coach under former teammate Bill Laimbeer with the WNBA's Detroit Shock.

Shortly afterward, Mahorn continued his work with Pistons radio, doing color commentary alongside Mark Champion.