The Cardinals were idle last night, but picked up a half-game on the NL Central leading Houston Astros as the ‘Stros fell to the Milwaukee Brewers.St. Louis opens a three-game set tonight against the Los Angeles Dodgers. The Cards are 5 1/2 back of the Astros and just one game back of both the Chicago Cubs and San Francisco Giants in the NL Wild Card race.Dustin Hermanson throws for the Cardinals. Dodgers’ ace Kevin Brown on the hill for L.A.