Niels Frederiksen is a Danish professional football manager. He last worked as the head coach of Danish Superliga club Brøndby IF. Frederiksen began his career as a head coach at Lyngby Boldklub in 2009 after having spent almost two decades as a youth coach in B 1913, B.93, and Lyngby. He remained in the post as head coach, and later manager, for the club for nearly four years. Wikipedia