Tony Romo will have a second MRI on his injured back over the weekend, which will help the Dallas Cowboys decide whether to keep the quarterback on the active roster or place him on injured reserve.

If Romo is placed on the IR, he would have to miss the first eight weeks of the season. Dallas is on bye Week Seven, meaning he'd only have to miss seven games.

A rule change this year allows teams to bring back one player back from injured reserve without the advanced designation required in previous years, but the move can't come until they are down to 53 players.

"We're certainly getting our hands around it," Stephen Jones said of Romo's situation. "We'll be needing to make that decision obviously sometime later in the weekend. Whatever we do with him, he'll need to be on our 53 when we cut it on Friday. So you've got to have him through the 53 cut before you can put him on designated to return, if we wanted to consider that. But it may be that we just keep him on the roster. We'll just see."