"Kerry Collins was on the Indianapolis Colts sideline and in the locker room Sunday at LP Field. It's doubtful the veteran quarterback ever steps on the field again.

"I'm about 99 percent sure this is going to be it," Collins said. "When you start dealing with concussions at my age and this point in my career, I'm inclined to think this is going to be it for me."

Collins, 38, was placed on the injured reserve list last week, ending his 17th NFL season. Symptoms from a concussion suffered against Pittsburgh on Sept. 25 persisted."