Penguins center Sidney Crosby is still experiencing concussion symptoms nearly a month after he last played, according coach Dan Bylsma. Crosby, who has not resumed skating, is still doing light workouts. The update was the first since Dec. 12, when Crosby said he had passed an ImPACT test -- designed to diagnose concussions -- but that he was dealing with a recurrence of symptoms and had decided to be cautious in returning.