Dallas Cowboys quarterback Tony Romo missed his third straight day of practice with a back injury on Friday and could be a game-time decision.

Coach Jason Garrett said Romo will need to move around better before Sunday’s game against the Arizona Cardinals in order to be able to play.

“We’ve still got about 48 hours to the game,” Garrett said, “so we’re going to give him every chance.”

The Cowboys have a short walkthrough Saturday. Romo has been receiving treatment on his back all week but has not done any football activities.

Owner Jerry Jones said on 105.3 The Fan in Dallas that Romo is “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. He’s moving around, been in the meetings today.”

Brandon Weeden would start at quarterback if Romo can’t go, with undrafted free agent Dustin Vaughan as the backup.

Left guard Ronald Leary also missed his third straight day of practice, but took part in Friday’s walkthrough.

Linebacker Bruce Carter, who broke his left ring finger in Thursday’s practice, took part in Friday’s session.