Per multiple reports, Jimmy Howard has broken a finger last night and will be out ~2 weeks. Joey MacDonald is being called up as the 2nd goalie until Howard's back. Obviously, if you are a Wings fan, this is not good.
UPDATE: The Red Wings press release states that Howard is out for the remainder of the road trip (games against Edmonton and Phoenix), after which he will be reevaluated. So hopefully it's less severe than initial speculation.