A team spokesman initially described it as a fender-bender, but coach John Fox acknowledged Monday it was a "pretty serious accident" that caused Walker to miss the win over Arizona due to general soreness.
"No structural damage. Luckily it wasn't more serious than it is," Fox said. "He was just a little bit too stiff and sore both Saturday night and Sunday morning. He didn't sleep real good either."
There were few details about the wreck, but Fox said Walker's car suffered extensive damage.
Walker, signed to a free-agent deal by Carolina in the offseason, has four tackles in six games.
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