Dallas Cowboys owner/general manager Jerry Jones gave an update on several injured players during his weekly radio appearance Tuesday on KRLD-FM.

After the third preseason game Jones said defensive tackle Jay Ratliff (groin and hamstring) would start the regular season on time. Now he's backing off a potential return and indicating Ratliff might remain on the physically unable to perform list when the regular season starts. If that occurs Ratliff will have to miss the first six games of the 2013 season.

"I wouldn’t say it today" Jones said of Ratliff and the PUP (but) "it's certainly more of a possibility than I would have ever thought two or three weeks ago. We got to look at the next two steps and carefully look at it in the next two weeks."

Jones was more confident in injured starters defensive end Anthony Spencer (knee) and cornerback Morris Claiborne (knee) returning for the season opener against the New York Giants. Claiborne returned to practice Tuesday morning after missing nearly two weeks.