Grimes didn't get any touches in Sunday's preseason game against the Cardinals.
Fourth-round rookie Tyler Ervin, also a capable pass-catcher, had two carries for 13 yards and one reception for 20 yards, even getting some snaps with the first-team offense. If Ervin has indeed passed Grimes as the top backup for passing downs, it would appear Grimes is merely competing with Akeem Hunt and Kenny Hilliard for the possibility of one roster spot.