Overview
- St. Louis, which won in 11 innings Friday, took the MLB Rivalry Weekend opener 5-4 at Busch Stadium.
- Yohel Pozo came off the bench in the 11th and lined the walk-off single to right for the Cardinals.
- Michael Wacha worked six innings and allowed three runs, giving him seven quality starts in nine outings this season.
- The Royals twice loaded the bases with one out yet scraped only one run each time, continuing late-inning and situational hitting troubles.
- The series resumes Saturday with Noah Cameron slated for Kansas City and Kyle Leahy for St. Louis.