Baker Mayfield "All-Americans" insert card No. 18 2019 Panini Prizm Draft Picks. He won the Heisman Trophy his senior year at the University of Oklahoma. Baker Mayfield had a fantastic rookie year with the Browns after going number one overall in the 2018 NFL Draft. So far in 2019 things have not gone as planned for Baker and the Browns but he'll look to turn the ship around in the second half of the season.