All signs point to Peyton Manning narrowing his choices to the Broncos and the Tennessee Titans.
Two other Manning candidates, the Arizona Cardinals and Miami Dolphins, are close to falling from pursuit.
The Cardinals should know their fate by 2 p.m. MDT today, when they must make a decision on a $7 million bonus due on incumbent quarterback Kevin Kolb.
If Manning picks the Cardinals, the team is expected to release Kolb before he triggers the bonus. If Manning doesn't choose Arizona, the Cardinals are expected to go with Kolb.
Manning is aware of the Cardinals' situation with Kolb and plans to notify them this morning about whether they are in or out. One NFL source says the Cardinals are out.
Meanwhile, Chris Mortensen on Twitter: "Peyton Manning will work out for Broncos today at Duke University. Indoor facility, as of now. Part of process, per sources."