It's generally been reported that Peyton Manning has had three procedures on his neck in the past two years -- which caused him to miss all of last season. But Sports Illustrated's Don Banks is reporting that Manning actually had a fourth surgery sometime between May 23 and Sept. 9 of last year.
Making matters a little more opaque, Banks also reports that Manning potentially has developed bone spurs in his neck that the Colts believe will require another surgery (and possibly, gulp, another fusion surgery).
The unreported procedure occurred last summer in Chicago and it was a follow-up to Manning's initial neck surgery. Since this occurred during the lockout, the club physicians only had very little contact with Manning.
"I wouldn't have anything to say about all of that, one way or another," Manning's agent, Tom Condon, told SI on Wednesday.
According to Banks' source, Manning badly wanted to return for the Week 16 Houston game last year, and he participated in an "organized and fully-scripted 30-play practice session" the week before in front of former executive Bill Polian and former coach Jim Caldwell.
More from Banks: