DiPietro complained of headaches after a rough outing against the New York Rangers on Sunday, when he was piled on in the crease and took at least two shots in the mask. He won't play Friday and will likely miss Saturday night's home game against Ottawa because he hasn't been on the ice since he was injured.
The 25-year-old goalie missed most of three games earlier this month following a mid-ice collision with Montreal's Steve Begin on March 13. DiPietro, in the first season of a landmark 15-year contract, was kicked in the head by Begin and showed symptoms of a concussion, although the Islanders never said whether he had one then or now.
At the time he was said to have a stiff neck and general body soreness.
Islanders coach Ted Nolan said Mike Dunham will make his second consecutive start on Friday and will be backed up again by Wade Dubielewicz. Dunham came out of Tuesday's loss to New Jersey in the
third period because of leg cramps and was replaced by Dubielewicz.
New York forward Ryan Smyth (leg) skated by himself, and Andy Hilbert (shoulder) didn't practice Thursday. Both players accompanied the team to Buffalo and will be game-time decisions. The Islanders recalled Steve Regier from AHL Bridgeport, and he will play if Smyth or Hilbert are forced to sit out.