Chad Billingsley (9-8, 3.25) vs. Dan Haren (8-5, 2.72).
COMMENTS: Monkeys in zero gravity! That's right, Space Chimps opened yesterday. Its main competition is some documentary about bats. Over the weekend, one of these projects will gross, oh, let's say $180 million; the other, slightly less. Meanwhile, the Dodgers are putting their primary ace up against the Diamondbacks' secondary ace. Winning team gets sole possession of first place. So what's it going to be, Dodgers? Bats or monkeys?