Dallas continued its impressive defense this season, keeping another opponent under 20 points in a dominating 25-10 victory at AT&T Stadium. Cooper Rush remained perfect, Michael Gallup made a triumphant return and the Dallas Cowboys’ defense continued its dominance during an impressive 25-10 win Sunday in Arlington. 10. COWBOY COMEBACK – Receiver Michael Gallup’s peculiar, productive timeline went TD catch-Torn ACL-TD catch spanning 10 months. In his first game back from the severe knee injury suffered while catching a score last Jan. 2, Gallup’s second catch against Washington (and of the season) was a broken-play, ad-libbed 9-yarder from quarterback Cooper…