Racing PositionsPhilip Rivers shines as Chargers hold off Rams in 'Battle for L.A.'7YEric WilliamsChargers QB Cardale Jones still a work in progress7YEric WilliamsChargers blown out by Seahawks in preseason opener7YEric WilliamsChargers grab potential successor for Philip Rivers in Cardale Jones7YEric WilliamsRobert Griffin III would offer Chargers a backup QB with mobility7YEric Williams