Ty Montgomery is listed as day-to-day with a rib injury and could play in Week 5 against the Dallas Cowboys.
Montgomery was off to a strong start with 28 yards on five carries in the first six plays from scrimmage before he left in the first quarter with the injury.
The Packers had said Montgomery had suffered broken ribs.
"Really, every injury is different," Packers coach Mike McCarthy said Friday. "We're talking about injuries that the specifics of it are different, where exactly it's located, type of equipment and definitely the position that you play. I really don't have a clear answer on exactly what Ty is dealing with and how he can move forward. I know today the conversation with the trainers, as far as his conversation with the trainers, he's preparing to get ready to play in Dallas. That's really what this weekend is for. Tuesday we'll really get our hands around it, and obviously, we'll get you the injury information on Wednesday."