Marc Staal's current headaches are related to the concussion he sustained in February. Staal had a number of tests to make sure his headaches weren't being caused by a different issue. That being said, an MRI on his neck did reveal pressure on his nerves. He had a cortisone shot as a result and he was kept off the ice for 48 hours following it. Staal practiced with the AHL Connecticut Whale on Friday.