Can someone please breifly summerize the rules regarding foreign (specifically non-EU) players in the top flight of Dutch Football? For instance, I know that for an American to sign with a Premiership (UK) club, he must have appeared in enough US National Team games to be granted a work permit. How does the Dutch system compare? Can they sign anyone they want? Or is there some "hurdle" designed to restrict foreign players from taking over the league? Thanks for your help! Dave G.