BETHLEHEM, Pa. -- The Philadelphia Eagles signed free agent defensive lineman Cullen Jenkins to a five-year contract on Saturday and traded former defensive tackle Brodrick Bunkley to the Cleveland Browns for a fifth-round pick in next year's draft.

A league source told ESPN NFL Insider Adam Schefter that Jenkins' deal is worth $25 million.

Jenkins is the fifth major acquisition for the Eagles, who signed free agent cornerback Nnamdi Asomugha on Friday.

"This is a guy who we didn't think we'd have the opportunity to acquire," Eagles general manager Howie Roseman said. "The way things have worked out here in the past few days, when the opportunity came at us, we jumped on it."

Jenkins started 66 games in seven seasons with the Green Bay Packers. He had a career-high seven sacks in 11 games with the Super Bowl-champion Packers last year.

Roseman said Jenkins will fill a variety of roles in the Eagles' newly structured defense under first-year coordinator Juan Castillo. But his main role will be as an inside pass rusher.

"On third-down, he rushes from inside," Roseman said. "We think he makes a difference in that role. In this defense and in this scheme, it really utilizes all his talents."

Bunkley was picked 14th overall in the first round of the 2006 draft.