Islanders goaltender Rick DiPietro did not dress for Thursday's 5-1 win against Tampa Bay after taking a puck to the face mask in practice Wednesday. DiPietro backed up Al Montoya in the Islanders' first two games this season. New York coach Jack Capuano said doctors have not ruled out a concussion. "He took one high and hard there and it shook him up a little bit," Capuano said. "He looked all right."