The 37-year-old said as recently as Tuesday that he doubts he could even have a legacy at his age, but he was asked the question again in his next pre-Super Bowl media session.
On Sunday, he has the chance to win the second Vince Lombardi Trophy of his 16-year NFL career when his Broncos side take on the Seattle Seahawks.
He told reporters: "This legacy question keeps popping up and I guess I've had a little more time to think about it. If I had my choice, what my legacy would be, it would be that I played my butt off for every team that I ever played on.
"It would also be that I was a really good teammate and I did everything I could to win. Whatever happens along in that time is fine with me. But those are the things that I care about really."
Manning broke regular season records in both passing yards and touchdown passes thrown this season.