Complex sentence: Winding down his career, he also played for FC Groningen (1984-85), Fort Lauderdale Sun (1986-87), FC Baar (1988-90) and FC Zug in Switzerland, finally hanging up his boots in 1991.
Split into simpler sentences: Winding down his career, he also played for FC Groningen (1984-85). He then played for FC Baar (1988-90) and FC Zug in Switzerland, finally hanging up his boots in 1991.