ST. LOUIS (AP) – Randy Wolf pitched eight sharp innings and the Milwaukee Brewers jumped on Jake Westbrook early to beat the St. Louis Cardinals 5-1 Wednesday night, giving the NL Central leaders their 13th win in 14 games.  Prince Fielder had a sacrifice fly in the first inning and an RBI double in the third to help the Brewers open a five-game cushion on the second-place Cardinals.  Milwaukee clinched only its fifth road series win of the season and will try for a sweep Thursday night. The Brewers have taken four of five from St. Louis this month.  The Brewers are 41-15 at home and just 26-35 on the road, but are one win away from a perfect 6-0 trip.