Saquon Barkley was the best player on the field and his effort was one of the best single-game performances in Penn State history. He was dominant as a runner and a receiver and also made some key blitz pickups to allow quarterback Trace McSorley to get rid of the ball. The PSU defense did its part, too. It wasn’t one of the Lions’ cleanest games but it was good enough. Here are the grades from the Iowa game …