Manager Mike Matheny said Wednesday he'll go with Adam Wainwright, Lance Lynn, John Lackey and Shelby Miller the first four games against the Dodgers. The best-of-five series starts Friday in Los Angeles.
The 23-year-old Wacha was the NL championship series MVP last year, outpitching Dodgers ace Clayton Kershaw twice. He's had trouble regaining form after a long layoff caused by a shoulder injury.
Acquired from Boston at the trade deadline, Lackey beat the Cardinals twice in the World Series and finished this year strongly. Miller barely pitched last fall due to workload concerns combined with season-long difficulties against division series opponent Pittsburgh.