Pitt linebacker Dan Mason made a triumphant return to the football field this season after two years rehabbing a significant knee injury. But his comeback story has come to an early end.

Coach Paul Chryst said Mason is out for the season with an internal injury sustained in a win over Temple this past weekend. Mason, who made his second straight start, was hurt late in the game making a tackle on quarterback Clinton Granger and stayed down for several minutes.

Mason had one of the best comeback stories in college football after hurting his knee making a tackle in 2010. Doctors told him he would never play again, but Mason returned earlier this year against Gardner-Webb. His season ends with two terrific games, as he notched back-to-back double-digit tackle performances.

"We’re still waiting each day and each half of the day to figure out if everything is right, with tests, levels," Chryst said. "I saw him yesterday. He’s in good spirits. Obviously, he’s down because this will keep him out for the rest of the year, but big picture he’s doing well right now."

Chryst was asked of Mason would be available for spring practice. He said yes, before adding, "Right now that's the least of my concerns. We want to make sure he’s all right."

Chryst also said guard Ryan Schlieper (ankle) is out for the season.