ST. LOUIS (AP) – Casey McGehee’s double snapped a 10th-inning tie and the Milwaukee Brewers won for the 12th time in 13 games, dealing another blow to their closest pursuers in the NL Central with a 5-3 victory over the St. Louis Cardinals on Tuesday night.  The Brewers’ 3-4-5 hitters had been 0 for 12 before extra innings when Prince Fielder singled to put runners at the corners ahead of McGehee’s double off Octavio Dotel (0-1). Yuniesky Betancourt added a sacrifice fly and John Axford finished for his 30th straight save and 33rd in 35 chances overall.  David Freese had an RBI single in his first game back from a concussion sustained from a beanball last Thursday for the Cardinals, who fell four games back after the opener of a three-game series.