Getty J.J. McCarthy #9 of the Minnesota Vikings participates in a drill during training camp. The training wheels are off for Minnesota Vikings quarterback J.J. McCarthy , who is poised to assume the role as the team’s starting quarterback — the first step in realizing their aspirations for him to become a franchise player. McCarthy’s NFL journey is already unprecedented. The 22-year-old, who is the youngest projected starter for the 2025 season, is the only first-round quarterback to miss