GREEN BAY Packers quarterback Aaron Rodgers may not start against the Dallas Cowboys on Sunday.

Rodgers, who suffered a broken collarbone against Chicago on Nov. 4, said he experienced more pain than he expected when he returned to practice last week.

He didn't play against Atlanta on Sunday and said he would need to see progress before he would consider playing at Dallas.

"We would need a different results and different responses to be able to get on the field this week," Rodgers said yesterday on his ESPN 540 Milwaukee radio show.

Backup Matt Flynn would take over if Rodgers can't start.

The Packers (6-6-1) are one-half game behind the NFC North co-leading Detroit Lions (7-6) and Chicago Bears (7-6).

Rodgers said he lifted weights yesterday and plans to practice today.

"I'm going to practice tomorrow and try and do some of things I did last week without pain," he said. "See how my body responds to it on Thursday and go from there."

Noteworthy

* Dallas middle linebacker Sean Lee has no structural damage in his injured neck and is day-to-day, league sources told ESPN.

Lee suffered the injury in the third quarter of Monday night's loss to Chicago. He missed the Cowboys' previous two games because of a hamstring injury suffered Nov. 10 against New Orleans. Outside linebacker Bruce Carter, who injured a hamstring Monday, is expected to miss Sunday's game.

* Washington owner Dan Snyder said he will not intervene in coach Mike Shanahan's decision regarding Robert Griffin III and whether the star quarterback will sit out the final three games this season, team sources told ESPN.com.

Second-year quarterback Kirk Cousins would take over for Griffin if Shanahan decides to shut down the former Heisman Trophy winner. The coach said he would make a decision by today.

* A second interview with suspended Miami offensive lineman Richie Incognito in the Jonathan Martin bullying case scheduled for this week has been postponed, according to a report.

ESPN, citing a source familiar with the case, reported that interviews with 11 other Dolphins players were also postponed.

Incognito's interview and others were scheduled for Tuesday through Thursday with NFL special investigator Ted Wells.

Wells' report is not expected to be completed before the end of the year.

*  Miami placed starting cornerback Dimitri Patterson on season-ending injured reserve.

Patterson battled a groin injury most of the season and reinjured it during the Dolphins' victory over Pittsburgh Sunday. Miami also put backup cornerback and special teamer R.J. Stanford on season-ending injured reserve with a broken fibula. The Dolphins signed free-agent cornerback Justin Rogers and claimed safety Michael Thomas off San Francisco's practice squad to fill out their 53-man roster.

* The NFL has confirmed that referee Jeff Triplette and his officiating crew made an on-field error for the second time in as many weeks Sunday in Cincinnati.

NFL vice president of officiating Dean Blandino said on NFL Network's "NFL Total Access" that Triplette's team made the incorrect call by awarding Bengals running back BenJarvus Green-Ellis with a 1-yard touchdown following an official review in the Bengals' win over the Indianapolis Colts.

Replays showed that Indianapolis defensive tackle Josh Chapman appeared to make contact with Green-Ellis' foot behind the line of scrimmage on the fourth-and-goal play, causing the running back to stumble to the turf. The original call marked Green-Ellis short of the goal line, turning over possession to the Colts.

The decision to overturn the call gave Cincinnati a 14-point lead heading into halftime.

Triplette's crew was also involved in controversy the week before when a miscommunication over the down led to confusion during Washington's final possession in a loss to the New York Giants. Blandino confirmed that Triplette was wrong not to stop the game clock after head linesman Phil McKinnely incorrectly motioned for the chain crew to advance the chains.