Impending free-agent DE Charles X. Johnson wants to re-sign with the Carolina Panthers, according to ESPN.com’s David Newton.

Green Bay Packers C JC Tretter (knee) had surgery Tuesday, Jan. 17, and he won’t be available to play in the NFC Championship game, according to head coach Mike McCarthy.

Former Chicago Bears linebackers coach Clint Hurtt was hired by the Seattle Seahawks Friday, Jan. 20, as defensive line coach.

Green Bay Packers WR Jordy Nelson (ribs) did more in practice Thursday, Jan. 19, than the team anticipated, according to head coach Mike McCarthy.

Oakland Raiders DE Khalil Mack will have discussions on a contract extension this offseason, according to general manager Reggie McKenzie. Mack’s contract expires after the 2017 season, and he could be retained on a one-year extension that could exceed $13 million.

Oakland Raiders QB Derek Carr will have discussions on a contract extension this offseason, according to general manager Reggie McKenzie. Carr will be in the final year of his contract in 2017, and there is no fifth-year option on him.

Updating previous reports, Chicago Bears defensive coordinator Vic Fangio was being sought after by the San Francisco 49ers for their defensive coordinator post, but the Bears declined to release Fangio from his contract.

Updating an earlier report, Baltimore Ravens LB Zach Orr (neck) has retired due to a congenital neck condition, according to multiple sources. Orr had 130 tackles, three interceptions, five passes defended, one forced fumble and two fumble recoveries in his first season as a starter in 2016.

Baltimore Ravens LB Zach Orr (neck) announced his retirement Friday, Jan. 20, due to a serious injury. The team was unable to change his mind. A source told NFL Network’s Mike Garafolo that Orr was playing with a cracked bone in his shoulder late in the season and missed Week 17 with a neck injury.

The Baltimore Ravens are close to an extension with LB Zach Orr, of which terms were not disclosed.