The biggest name left without a team has apparently trimmed his list down to two. Peyton Manning will work out for the Broncos Friday at Duke University, the Denver Post's Mike Klis reported. However, the Titans remain in the running.

According to NFL Network's Jeff Darlington, Manning told the Dolphins on Thursday that he would not play for Miami. The Dolphins are reportedly hosting QB Matt Flynn for a visit on Friday.

The Cardinals, with whom Manning visited last weekend, owe QB Kevin Kolb a big roster bonus on Friday.

The Broncos' plane, including team executive VP John Elway and others, is going from Denver to Raleigh on Friday morning. Manning has been working out at Duke with his former offensive coordinator David Cutcliffe, who is the Blue Devils' head coach.

According to Klis, it's unknown whether the Broncos are just going to watch Manning work out to see the condition of his surgically repaired neck and his arm strength, or if they also are planning to have Manning sign a contract.

NFL Network's Michael Lombardi confirmed that the Titans remain in the running, reporting that Manning will throw for them as well, but a date has not been set for that workout.

Cutcliffe, who has worked with Manning often since Manning's surgeries, said that from what he has seen, Manning is nearly ready to play in the NFL again.

"It's incredible how much progress he's made in throwing the football," Cutcliffe said. "He's gotten his arm strength back and his accuracy is there. I'm not an NFL coach, of course, but I think I know what it takes to complete passes in the NFL, and it's clear that Peyton can make all those throws.

"From what I've seen, he's right on target (to be ready for the start of the 2012 season). Everybody knows what a hard worker he is, and he's dedicated himself to getting ready for the season."

The way we see it

The Cardinals and Dolphins entered the race for Manning as the front-runners, but it's the Broncos and Titans, two of the surprise contenders, that still have a chance at the future Hall of Famer's services. Whichever team Manning chooses will have decisions to make with quarterbacks currently on the roster. The Titans have Matt Hasselbeck and last year's first-round pick Jake Locker. The Broncos' starting QB is the popular Tim Tebow, who could be traded or cut should Denver land Manning.