Taking nothing away from the feisty A's, who are on the verging of sweeping this midweek set at Houston. But Oakland has also fallen one game short of completing several potential sweeps this season, and we don't have much interest going against the Astros' Framber Valdez. The reason? He hasn't allowed a run in his last two, or three of his last four, starts. Not to mention the fact that Houston has also won in 12 of his last 13 starts. This is a tall order for A's counterpart Mitch Spence, who to his credit has been mostly effectively lately, but is usually capped at five innings these days. Play Astros on Run Line