So much for Cam Newton vs. Robert Griffin III. For the ticked-off players in the visitors locker room, it was more like the Carolina Panthers vs. Sonny Jurgensen, Sam Huff and Bobby Mitchell. Newton and the Panthers broke a five-game losing streak Sunday, topping Griffin and the penalty-prone Washington Redskins 21-13, prompting coach Mike Shanahan essentially to throw in the towel on the season.