Should Tony Romo and his damaged ribcage play Monday night? (Marcio Jose Sanchez / AP)

Should Tony Romo play?

Cowboys owner Jerry Jones said Tuesday that he doesn’t know whether Romo will be able to play; a CT scan taken Monday revealed a pneumothorax, a pocket of air around the lung. The decision, Jones said, will hinge partly on Romo’s tolerance for pain.

“I understand the nature of the injury as much as you can without being in medicine. We'll just have to see how it goes,” Jones said in a KRLD interview. “It has everything to do with just his ability to handle the pain, and we know he has a bunch of it. We'll see how that goes. He'll be monitored obviously extremely closely regarding the pneumothorax and we'll see how that goes.”

Romo’s coach, Jason Garrett, said he “would not think there's any reason he won't be able to play” Monday. Nor, for that matter, does Romo, who did pretty well after being hurt Sunday. He missed nearly the entire third quarter after being injured on a Carlos Rogers tackle, then, when his pain-killers kicked in, returned to lead the Cowboys to an overtime victory in San Francisco. He completed 12 of 16 passes for 201 yards and a touchdown after being hurt.

After Sunday’s game, Romo said he intended to play. “I can't imagine [the pain] being any worse.”

There’s precedent for playing — and for sitting — with broken ribs and/or a punctured lung. Don Meredith played with a collapsed lung and led the Cowboys to a victory over the Redskins in November 1966. Johnny Unitas had three broken ribs and a punctured lung in the Baltimore Colts’ memorable 1958 season. In 2001, Drew Bledsoe also suffered a sheared blood vessel and was out long enough for the Tom Brady era to begin in New England.