Chip Kelly isn't through with adding quarterbacks this offseason.

The Eagles are expected to sign Tim Tebow on Monday as the team begins spring workouts, an NFL source said.

Fox Sports first reported Sunday that Tebow, who hasn't played in an NFL regular-season game since 2012, was set to sign with the Eagles. The 2007 Heisman Trophy winner has had tryout opportunities at other positions, but will be brought in as a quarterback.

Tebow's contract will be for one year, another league source said.

The Eagles already have four quarterbacks on the roster in Sam Bradford, Mark Sanchez, Matt Barkley and G.J. Kinne. Bradford, who is rehabbing a torn anterior cruciate ligament in his left knee, isn't likely to be 100 percent ready for the start of on-field training at the NovaCare Complex.

Tebow worked out for the Eagles last month. At the NFL meeting in March, Kelly was asked why he brought the 27-year-old in for a look-see.

"I've always been a fan of Tim," Kelly told the NFL Network. "We bring in a lot of players for private workouts, it's just he's the one that everyone keeps talking about. We brought in Terrelle Pryor for a workout and Thad Lewis in for a workout. When players are available for you to work them out it's the same thing [as] going to the veteran combine or going to the super-regional combine. … So all we're doing is just doing our homework."

Tebow was last with the New England Patriots during the 2013 preseason. He was cut before the regular season and never caught on with another team. He began working in broadcasting in December 2013 and helped ESPN with its college football coverage last year.

After a successful college career at Florida in which he won a national championship, Tebow was selected by the Broncos in the first round of the 2010 draft. He spent most of his rookie season as the backup.

Tebow opened the 2011 season as the No. 2 quarterback. He became the starter midway through the season, and despite lacking traditional NFL quarterback skills, was instrumental as the Broncos reached the playoffs. He even won a playoff game as the starter.

But when the Broncos signed Peyton Manning the next offseason, Tebow was traded to the New York Jets. With Sanchez as the Jets' 2012 starter, Tebow was used sparingly, mostly as a runner out of the Wildcat formation. He was released the next April.

If Tebow is to have any chance of making the Eagles' 53-man roster, his best chance is winning the third spot behind Bradford and Sanchez. That is assuming, of course, Kelly doesn't draft a quarterback. Barkley's grip on the No. 3 role is not secure.

Kelly prefers multi-positional players and could be swayed to keep Tebow if he can perform other tasks on game days. The Eagles offense also has plenty of flexibility for mobile quarterbacks. Still, Tebow's odds are long.

Kelly kept five quarterbacks on the roster through training camp two years ago. He re-signed Sanchez in March, traded Nick Foles for Bradford a few days later, and now added Tebow to great surprise.

And he still may have one more quarterback move up his sleeve.