Roberts injured his wrist in the first preseason game. He started that game and was showing promise in training camp.
“Robert’s got a sprained ankle,” Carroll said, per SeattlePI.com. “It’s a significant ankle sprain. We have to see what that means. He feels pretty good about it, but it definitely showed up on the MRI and all that.”
The surgery could sideline Thomas for up to a month. He is in his first season with the Jaguars.
“I don’t plan on missing a game,” Cobb said. "I'm doing everything in my power to get back before then, but we still don't know severity. We've still got to get a lot of the swelling out. It definitely is a lot better then what we all thought it was in the beginning."
The Cowboys waived linebacker Jonathan Brown, wide receivers Antwan Goodley and David Porter and and tight end Brandon Barden. They also waived/injured defensive end Kenneth Boatright, running back Michael Hill and offensive tackle R.J. Dill.