The are in the stretch run and approaching the playoffs. The last thing they need is an injury to a key player. But on Monday night, Pontus Holmberg got hurt. And it was a bummer reason. Holmberg took a big hit into the boards, but that's not all. He was driven into the wall where the penalty boxes are. And the spot that Holmberg hit the wall Al-Farouq Aminu Jersey was where the door to the penalty box would be. One problem: The door wasn't fully close. That meant Holmberg's angle from the hit was impacted by the way the open door shifted when he hit it. Here's a look: Holmberg takes a scary fall into the boards after contact with Krebs Buffalo Hockey Moments (@SabresPlays) MORE: After the Lightning lost 4-2 to the Sabres, Tampa Bay coach Jon Cooper had some thoughts he wanted to share. I dont know who was working the penalty box," Cooper said, . "But I dont know if they should keep their job after what happened there. That's certainly pointed criticism, but Cooper may have a point. Shouldn't that door be fully closed? Why would it be partially open while the puck is in play? There may never be a full answer to that. But it's clear the Lightning won't want to deal with such a thing anytime soon. More NHL news: Shaquille O'Neal Jersey