MILWAUKEE (AP) – Casey McGehee homered three times and the Milwaukee Brewers rallied to beat the St. Louis Cardinals 10-5 on Wednesday and add to their NL Central lead.  McGehee hit go-ahead, two-run homers in both the first and third innings and added a seventh-inning solo shot to give Milwaukee its eighth win in nine games at Miller Park. Corey Hart also homered for the Brewers, who extended their lead over the Cardinals to 3 1/2 games in the division.  Rafael Furcal hit a three-run homer and drove in four runs off Randy Wolf (8-8) in his fourth game since being acquired Sunday in a trade with the Dodgers, but new Cardinals starter Edwin Jackson struggled.