Cindy Ord | Getty Images Philadelphia Eagles running back Saquon Barkley sees enormous potential in first-round rookie linebacker Jihaad Campbell. Philadelphia Eagles running back Saquon Barkley has spent much of his career lining up against one of the premier linebackers in the sport twice each season, and believes one of his newest teammates may have the kind of upside. Chosen No. 2 overall in the 2018 NFL Draft, out of Penn State , Barkley has faced off against fellow Nittany Lion turned