The player famously injured by Norbert Siegmann in 1981 is currently serving as the technical director of what football club?
Norbert Siegmann:  He is probably best known for seriously injuring Ewald Lienen in 1981. Ewald Lienen: Ewald Lienen (born 28 November 1953) is a German former football player and current technical director of FC St. Pauli.
FC St. Pauli