The start of an NFL training camp is just around the corner, and fans of the Dallas Cowboys had some concerns after an image surfaced of star quarterback Dak Prescott in a walking boot. Since the photo surfaced, plenty have wondered about his status and whether or not this could impact his availability for training camp. On Monday, NFL insider Ian Rapoport provided an update on Prescott’s injury status and how long he is expected to be out. But first, Rapoport provided some insight into the Cowboys’ quarterback injury. “Here’s my understanding of the situation: on the same foot, the same ankle…