Dak Prescott in boot, to undergo further tests after injuring calf on final play of Cowboys' win vs. Patriots | CBS Sports Headlines Dak Prescott in boot, to undergo further tests after injuring calf on final play of Cowboys' win vs. Patriots The star quarterback was helped to the locker … Continue reading Dak Prescott in boot, to undergo further tests after injuring calf on final play of Cowboys' win vs. Patriots