GREEN BAY, Wis. (AP) -- The Green Bay Packers have signed safety Nick Collins and nose tackle Ryan Pickett to long-term contract extensions, securing the services of two cornerstones in their much-improved defense.

The team has not released details Friday of either deal. Collins' agents, Dave Butz and Alan Herman, have confirmed a report on the Milwaukee Journal Sentinel's Web site that Collins' deal was for three years and $23.4 million.

Pickett was an unrestricted free agent, but the Packers placed the franchise tag on him earlier in the offseason. Collins was a restricted free agent.