The Flyers announced that Chris Pronger and Brayden Schenn will both be out indefinitely.
GM Paul Holmgrem said today: "While Chris' knee is improving, he has struggled with other issues that are concussion like symptoms. Chris will see Dr. Joe Maroon and Dr. Mickey Collins on Wednesday, December 14th in Pittsburgh for further evaluation. Chris will be out indefinetly.
Pronger missed four games with what the team described as a virus last month before announcing that he would need left knee surgery.
Collins is the doctor whom Sidney Crosby saw for his concussion.
Schenn has missed the last two games with an upper-body injury.
"Brayden reported 'not feeling himself' on December 5th," Holmgren said. "Our doctors believe he has a mild concussion. Brayden will be out indefinitely."