David Johnson thought he was done having to prove himself on the football field. His first two seasons in the NFL should have taken care of that.
It’s probably not a fluke, after all, when you set rookie records, get your cleats sent to the Pro Football Hall of Fame and then lead the league in touchdowns and yards from scrimmage in your second year.
But here he is, once again feeling like a relatively unknown commodity from the University of Northern Iowa, left with no alternative but to justify his worth all over again.
The Cardinals running back kicked off somewhat of a "Re-appreciation Tour of 2018" with a bang Saturday night, busting his two carries in the team’s preseason opener against the Chargers for 14 yards apiece.