McCoy completed five of eight passes for 25 yards and had a six-yard run during Saturday's 38-10 preseason loss to Kansas City.
McCoy was afforded the Cardinals' first three possessions of the game, but all three ended in punts. Despite the lack of headway on offense, he again worked ahead of Clayton Tune and David Blough with Kyler Murray (knee) still in recovery mode. If Murray isn't healthy by Week 1, McCoy figures to lead Arizona's offense until the starter is ready to roll.