In sports, more specifically in contact sports like football, players can get psychical. Especially between strikers and defenders, things can get heated. Sometimes players cross the line of what is permissible and tackle another player instead of the ball. Besides the disciplinary punishment by the referee (like a yellow or red card) and the competent disciplinary bodies of sports federations, the question arises whether a player could in such case be held liable under civil law or criminal law. Decisions of the North Netherlands District Court and The Hague Court of Appeal, concerning liability of an amateur player for the injury of an opponent, have caused quite a stir. In this article, the author explains when a player could be held liable under civil law or criminal law in the Netherlands. If an injured player wants to hold the other player liable, he requires the personal data of such player. If the injured player asks the football club for those personal data, would the football club be obliged to hand over this information?