Sluggish start for RG3, Redskins includes Niles Paul injury

Robert Griffin III played two series in the Redskins-Browns preseason opener Thursday night, completing 4-of-8 passes and taking a bunch of stiff shots after delivering those throws. The Redskins got three points to show for his work. Pierre Garcon dropped what might have been a touchdown and certainly would have been a gain of 40-plus…