 But on July 4th, a photo emerged of Dak Prescott in a protective walking boot. And the NFL media went to DEFCON 1. It was panic time, and everybody freaked out. Oh, my gosh. Here he is. Dak Prescott, a walking boot. What? Trey Lance, is he going to be starting week one? People went ballistic. They lost their minds over a photo of Dak Prescott in a walking boot.