(Alex Brandon / AP)

Tony Romo’s 2013 season ended a week early when he underwent surgery for a back injury and at least one person with very specific knowledge of back injuries is concerned for the Dallas Cowboys quarterback.

Troy Aikman, who had back surgery early in his career with the Cowboys and had problems before his retirement, said he “would be a bit concerned” about the prospects for Romo.

“I came back in a relatively short period of time because of when I had my surgery, so he’s at least afforded more time to get ready,” Aikman said at a United Way event Wednesday at AT&T Stadium (via Cowboys.com). “But having said that, two back surgeries in less than a year at his age, I would be a bit concerned.

“I’m hopeful that he’s able to come back – everybody is. This team won’t be the same if he’s not able to. I anticipate that he will come back. But to say that, ‘Hey, he’s ahead of schedule and everything’s going fine,’ I’m not sure how you can really measure that here in April.”

Aikman was 26 when he had back surgery; Romo has now had two back operations within the last year and will turn 34 on April 21. Aikman retired when he was 34.