Houston has gone under in three straight. Lefty Framber Valdez has been lights out this year, posting a 2.65 ERA. He pitched against Texas on Aug. 11 and gave up no runs in seven innings. He’s allowed just one earned run against Texas in 20 innings this season. Dane Dunning has pitched well against the Astros, giving up just two runs in two starts in 11.2 innings.