Cowboys' Dak Prescott out for 'Sunday Night Football' vs. Vikings with calf injury, Cooper Rush to start | CBS Sports Headlines Cowboys' Dak Prescott out for 'Sunday Night Football' vs. Vikings with calf injury, Cooper Rush to start Rush will get his first career NFL start in prime time against … Continue reading Cowboys' Dak Prescott out for 'Sunday Night Football' vs. Vikings with calf injury, Cooper Rush to start