Dak Prescott, entering his 10th season, is now the longest-tenured member of the Dallas Cowboys after the retirement of Zack Martin and the departure of DeMarcus Lawrence. The 32-year-old quarterback, who was drafted in the fourth round of 2016, has started all 122 games he’s played. Last season was interrupted by an injury, but he has returned to OTA workouts, participating fully except for contact drills. Prescott remains optimistic about his ability to contribute fully this coming season.