Jason Peters and the Philadelphia Eagles have agreed to a four-year extension that will bring the overall value of his deal to $51.3 million, the Pro Bowl offensive tackle's agent told ESPN NFL Insider Adam Schefter.

“There aren’t many people cut from the same cloth as Jason Peters,” said head coach Chip Kelly. “To be able to bounce back from two Achilles injuries and return to an All-Pro level speaks not only to his incredible athleticism, but proves just how hard he works at his game. Having him at left tackle provides a lot of comfort to our quarterback and to our entire offense. He’s a guy that many players look up to in our locker room.”

Peters already was under contract for the 2014 season. The new four-year extension is worth $41.3 million, according to Taylor, bringing the total value of his deal to $51.3 million.

Taylor claimed that he and Eagles general manager Howie Roseman had been working throughout the season to reach a deal that would allow Peters "to retire an Eagle."

Peters started all 16 games this past season as Philadelphia's left tackle, anchoring an offense that ranked second in the NFL.

Jason is everything you look for in a left tackle,” said Eagles general manager Howie Roseman. “The unique blend of size, speed and athleticism that Jason possesses is something that everyone wants in an offensive lineman. However, what really makes him unique is his desire to improve day in and day out despite the fact that he’s played at an elite level for so many years. We are truly rewarding Jason’s excellence, as he’s a guy who has made six Pro Bowl appearances and has been selected an All-Pro five times. We’re excited to be able to keep him in Philadelphia for years to come.”

The 32-year-old Peters has appeared in 123 games over a 10-year career with the Eagles and Buffalo Bills. The six-time Pro Bowler missed the entire 2012 season due to an Achilles injury but returned this past season to be a key contributor under first-year coach Chip Kelly.