Romo suffered the injury in Monday’s loss to the Washington Redskins after being kneed in the back by linebacker Keenan Robinson. Romo previously underwent surgery in December 2013 to repair a herniated disc.
Head coach Jason Garrett addressed the quarterback’s status Friday morning:
"Obviously, we have to see him move around at some point before the game starts," Garrett said. "Hopefully he can do something today, and then we'll have a walkthrough tomorrow. We've still got about 48 hours until the game, so we want to give him every chance.”
Romo has not practiced all week, but the team has remained hopeful that he could return Sunday:
“He’s moving around, and he's doing a little stuff in the back there to get the stiffness out, kind of like a bicycle-type thing,” owner Jerry Jones told 105.3 The Fan. “He's moving around, been in the meetings today."
If he does not recover in time, Romo -- who has 1,998 yards, 15 touchdowns and six interceptions on the season -- will be replaced by backup Brandon Weeden.
The Cowboys are first in the NFC East with a record of 6-2. They play the Cardinals (6-1) Sunday.