BOSTON — Red Sox left-hander Jon Lester will start Game 1 of the World Series against the St. Louis Cardinals.

That’s the word on Monday from Boston manager John Farrell.

Farrell says he hasn’t decided on his entire lineup, but designated hitter David Ortiz will start at least once at first base when the series shifts to St. Louis for the middle three games. There is no DH allowed in the NL park, meaning Ortiz will have to play the field for just the seventh time this season.

The Red Sox worked out Monday, two days after eliminating the Detroit Tigers in Game 6 of the AL championship series.

Game 1 of the World Series is Wednesday night at Fenway Park.

Lester also started the American League Division Series and American League Championship Series for the Red Sox. He has started four games this postseason, going 2-1 with a 2.33 ERA in 19 1/3 innings pitched.

Lester pitched in a World Series at age 23 for Boston’s 2007 championship team, so he’s familiar with the big stage.

St. Louis will counter with Adam Wainwright, one of the best pitchers in baseball.