Crawford took a blow to the head during Sunday's practice and sat out of Monday's practice as a precaution, Clarence Hill of the Star-Telegram reports.

EDGE Analysis

Crawford could be subject to the league's concussion protocol if the head injury is severe enough to keep him out of practice for multiple days. It's likely the Cowboys are just playing it safe with their projected starter at defensive tackle, while they continue to deal with a depleted D-line.