What's next for Manning?
Now, there is doubt that the quarterback will play again this season.
Manning underwent single anterior fusion on his neck Thursday, and there isn't a timetable for his return.
Former NFL linebacker Coy Wire said he had a similar procedure in 2007 after injuring his neck on a tackle when he played with the Buffalo Bills. Wire, who didn't speak to Manning's injury because he doesn't know specifics, said he had to wear a neck brace for six weeks and was advised not to walk for a month. He was cleared for contact six months later but could rehabilitate and condition before then.