Manning said "I have work to do" on Tuesday, when he was introduced as Denver's new quarterback.
"I'm not where I want to be. I want to be where I was before I was injured. There's a lot of work to do to get where we want to be from a health standpoint."
Manning said he "laid his cards out on the table" when he spoke to Broncos vice president John Elway and was grateful that Denver, along with San Francisco, Tennessee and others, were willing to consider him to be their next QB.