The NHL has fined Nashville defenseman Shea Weber $2,500 for slamming Detroit forward Henrik Zetterberg's head against the glass at the end of Game 1 and warned the captain to be careful the rest of the playoffs.

Weber was assessed a minor penalty for roughing, and the NHL announced the fine Thursday while the Predators were practicing. The league noted the fine was the maximum allowed under the Collective Bargaining Agreement.