Begin speculation on how he will be replaced in the lineup. Bear in mind though that the Isles have a full complement of defensemen already depending on Milan Jurcina's status (day to day with an elbow laceration).
Their next game is Tuesday at Philadelphia. Not exactly a friendly environment for rookie defensemen and close enough in proximity that a call up may not happen until gameday, especially if they're viewing it as an "insurance" call up. Their next three after that are at home.