Linus Ullmark is back. Robin Lehner is out. The Buffalo Sabres recalled Ullmark from the Rochester Americans on Monday morning because Lehner is out with a lower-body injury. Lehner did not take part in Sunday's optional practice. He left a morning skate last week complaining of leg pain but he never missed a game. Lehner lasted only two periods Saturday, allowing four goals on 30 shots in a 4-2 loss to Los Angeles. Lehner has been pulled from three of his last eight starts in KeyBank Center. He is 1-5-1 with a .865 save percentage during the forgettable stretch.