Netminder Ben Bishop left the ice on a stretcher in the first period after suffering an apparent injury to his left leg. Later in the period, center Tyler Johnson had to leave after suffering an apparent injury to his lower body.
With 7:35 left in a scoreless first period, Bishop, a finalist for the Vezina Trophy as the league's top goaltender, was scrambling around the Tampa Bay net during a Pittsburgh forecheck and seemed to hurt himself as he fell to the ice. Bishop immediately grabbed at his left knee.
It did not appear from replays as though any other players made contact with him.
Trainers attended to Bishop, and even though he sat up, they called for a stretcher, and he was taken from the ice. Bishop, 29, was replaced by backup Andrei Vasilevskiy.
Johnson was injured after he went down on a hit into the boards. He appeared to suffer a lower body injury and had to be helped off the ice.
Johnson remained in the training room when the Lightning came out for the second period
Letang left the ice but returned to the bench during the injury timeout when Bishop was being attended to. Callahan remained in the game but is likely to face supplemental discipline from the league's Department of Player Safety.