Robinson suffered a severe ankle sprain in Sunday’s win against the Dolphins and could miss significant time. Cowing ran seven pass routes after Robinson’s exit from the game — the most among all Niners receivers besides Deebo Samuel and Mike Evans. Cowing was not targeted against Miami. If he gets a bump on snaps and routes this week against the Cardinals, Cowing would be nothing more than a deep league flex play who would likely be a boom-bust option.