ARLINGTON, Texas — Tony Romo knew he was risking another left collarbone injury by coming back eight weeks after breaking it.

The Dallas quarterback won’t have to worry about another return. He’s out for the season this time.

Cowboys owner and general manager Jerry Jones said on his radio show Friday that Romo would sit out the remaining five games with a small fracture in the same collarbone that had already sidelined him for seven games.

Romo will not need surgery after getting hurt in the third quarter of Thursday’s loss to Carolina. He didn’t need surgery after breaking the collarbone in Week 2 at Philadelphia, either.

It’s the third fracture in Romo’s non-throwing shoulder in his nine years the starter. He missed most of 2010 after getting hurt against the Giants.

PATRIOTS: New England released linebacker Eric Martin for the second time this season. Martin was most recently added to the 53-man roster on Nov. 12 and made three tackles in the Patriots’ past two games.

JETS: Cornerback Darrelle Revis will not play against the Dolphins on Sunday because he is still dealing with a concussion.

Revis was hurt during the Jets’ loss at Houston last Sunday and has not practiced since. Marcus Williams will start instead.

BILLS: Defensive tackle Kyle Williams will undergo surgery on his left knee and miss the rest of the season. The 10-year veteran has been out since suffering a miniscus injury against the Bengals in Week 6.

BROWNS: Coach Mike Pettine said he hasn’t decided if Johnny Manziel will be active on Monday night against Baltimore after he was demoted to third string this week.

FALCONS: Running back Devonta Freeman, recovering from a concussion, will not play Sunday against Minnesota.

WASHINGTON: Starting cornerback Chris Culliver is heading to injured reserve after tearing ligaments in his right knee.

Coach Jay Gruden said Culliver tore his ACL and MCL in practice Thursday.

BENGALS: The team activated rookie offensive tackle Cedric Ogbuehi and put cornerback Darqueze Dennard on injured reserve with a separated shoulder.

Cincinnati drafted Ogbuehi in the first round even though he was still recovering from a torn ACL. He was cleared to practice with the team Nov. 10.

RAMS: Unless Case Keenum passes the NFL concussion protocol Saturday, St. Louis will turn to benched starter Nick Foles at quarterback on Sunday against Cincinnati.