Getty Former Seattle Seahawks quarterback Sam Howell. The Minnesota Vikings are preparing for a potential championship season without knowing if they have a quarterback who can rise to that challenge. J.J. McCarthy is QB1 heading into training camp later this month, though he is just 22 years old and has never taken an NFL snap in a game that counts after missing all of his rookie year due to a knee injury. Alec Lewis of The Athletic summed up his thoughts on McCarthy on Wednesday, July 2. “The