Cowboys free agency 2021: Tarell Basham, Brent Urban added to D-line as team's plan comes into focus | CBS Sports Headlines Cowboys free agency 2021: Tarell Basham, Brent Urban added to D-line as team's plan comes into focus Dallas is loading up in the trenches, and it’s much needed ESN … Continue reading Cowboys free agency 2021: Tarell Basham, Brent Urban added to D-line as team's plan comes into focus