Pittsburgh, PA (SportsNetwork.com) - Add Pascal Dupuis to the list of injured Penguins.

Pittsburgh announced Friday that Dupuis will undergo surgery to repair ACL damage in his right knee. The injury could sideline him for the remainder of the season.

The 34-year-old Dupuis suffered the injury in the first period of Monday's loss to the Ottawa Senators when he collided with teammate Sidney Crosby.

Dupuis, who signed a four-year, $15-million contract in the summer, had seven goals and 13 assists in 39 games prior to the injury.

The Penguins also recalled forward Harry Zolnierczyk from Wilkes- Barre/Scranton of the American Hockey League and activated defenseman Brooks Orpik (concussion) and forward Tanner Glass (broken hand) from injured reserve.

Orpik hasn't played since being punched in the head by Boston's Shawn Thornton on Dec. 7, while Glass has been out since Nov. 23.