David J. Phillip/APRuss Mitchell scores in the seventh to give the Dodgers the lead ... not for good.I imagine a lot of Dodger hearts sank when, with the score 1-1 against Houston and two out in the top of the seventh inning, the Astros intentionally doubled Dioner Navarro and then intentionally walked Russ Mitchell.Well, maybe the ground-rule double allowed to Navarro (his fourth hit of the season) wasn't intentional, but it certainly could have been part of a clever gambit, because after the two baserunners reached, Dodger manager Don Mattingly was compelled to pinch-hit for Clayton Kershaw after the lovely lefty had thrown only 84 pitches.Instead of Juan Castro coming off the bench, however, it was Andre Ethier, held in reserve to rest him from his Sunday injuries. And all those bea