Complex sentence: Following that Advocaat moved to Belgium and played in the second division for K. Berchem Sport, however he only made 10 appearances before, moving back to the Dutch Eredivisie with FC Utrecht where he made 39 more appearances before the end of his playing career.
Split into simpler sentences: Following that Advocaat, moved to Belgium and played in the second division for K. Berchem Sport. He only made 10 appearances there, however, before moving back to the Eredivisie with FC Utrecht, where he made 39 more appearances before the end of his playing career.