MILWAUKEE (AP) ― An afterthought in early September, the St. Louis Cardinals are taking their wild ride all the way to the World Series.

David Freese hit a three-run homer in the first and manager Tony La Russa turned again to his brilliant bullpen for seven sturdy innings as St. Louis captured its 18th pennant with a 12-6 victory over the bumbling Milwaukee Brewers on Sunday night.

Albert Pujols and the wild-card Cardinals took out the heavily favored Phillies in the first round, then dispatched the division-rival Brewers on their own turf in Game 6 of the NL championship series.

Looking for its second title in six seasons, St. Louis opens the World Series at home Wednesday night with ace Chris Carpenter on the mound against the AL champion Texas Rangers.

Trailing by 10 1/2 games in the wild-card race on Aug. 25, the Cardinals surged down the stretch and took advantage of a monumental collapse by Atlanta to win a playoff spot on the final night of the regular season.

Now, bolstered by a group of no-name relievers who keep answering La Russa’s call, the Cardinals are back in the World Series for the first time since beating Detroit in 2006.

What a relief!

It was a disappointing end to a scintillating season for Prince Fielder, Ryan Braun and the NL Central champion Brewers, who finished with a franchise-record 96 wins, six games ahead of St. Louis.

Baseball’s best home team collapsed in the NLCS, though, losing twice at Miller Park in an error-filled flop. It was likely Fielder’s final game with the Brewers, too. He’s a free agent after the season.

Rafael Furcal and Pujols hit solo homers off Chris Narveson and St. Louis built a 9-4 lead by the time the bullpen took over for Edwin Jackson in the third inning.

The group of Fernando Salas, Marc Rzepczynski, Octavio Dotel, Lance Lynn and Jason Motte allowed two runs the rest of the way.