Worries over his arm strength. Concerns about his durability. Whispers he'd never be the same guy again.
"It was an unusual process, to say the least," Fox told "NFL AM" on Wednesday. "It was like recruiting all over again in major college football. To get a guy like Peyton, his caliber -- even though there was a little bit of risk -- with his work ethic, we knew he would work his way back to being the old Peyton, and he has."
The Broncos are 9-3 and surging down the stretch. They've wrapped up the AFC West and loom as a team without an overt weakness.