"The truth came spilling out Thursday.

Flyers captain Chris Pronger, 48 hours removed from arthroscopic surgery on his left knee, missed the past four games with a sickness that was more head related than what the team has been calling a virus.

Listening to Pronger, the five-time All-Star defenseman feared that he had a concussion, or at the very least, concussion-like symptoms.

"I just didn't feel well," Pronger said in a conference call, his first interview since Tuesday's surgery. "We said it was a virus, but I didn't know what it was. I had never felt like that before where I had headaches and nausea and all the rest of that stuff. So I had a concussion test. I took the baseline test and passed that. I've just never felt like this where you get lightheaded, you have headaches, you're nauseous."