The St. Louis Cardinals close out their road series against the Philadelphia Phillies on Sunday, August 23, 2026, at Citizens Bank Park, with first pitch set for 1:35 PM ET. Kyle Leahy gets the start for St. Louis against Phillies left-hander Cristopher Sánchez. This is a regular season afternoon contest with playoff positioning always lurking in the background in late August, making every game in this stretch meaningful for a Cardinals club looking to stack wins on the road.
Cardinals vs. Phillies: Sunday, August 23, 2026 Game Preview
Probable Starters
The Cardinals hand the ball to Kyle Leahy, who will be tested facing a Phillies lineup that consistently puts pressure on opposing pitchers at Citizens Bank Park. Philadelphia counters with Cristopher Sánchez, a left-hander who gives the Cardinals something to think about when building their lineup construction for the afternoon.
Without updated ERA or win-loss numbers available heading into this one, both starters carry some question marks on paper. What we do know is that Citizens Bank Park is a hitter-friendly environment, and any starter who struggles to command his secondary pitches on a warm August afternoon is going to hear it from that crowd quickly.
Keys to Watch for St. Louis
- Leahy's command: A road start in Philadelphia demands strike-throwing efficiency. If Leahy can work ahead in counts and limit walks, he gives the Cardinals a chance to keep this game manageable deep into the middle innings.
- Offensive production against Sánchez: Left-handed starters can give Cardinals hitters fits depending on the day's lineup construction. St. Louis needs its right-handed bats to stay disciplined and look for pitches they can drive.
- Bullpen management: With this being the final game of a road series, the Cardinals will want to avoid burning key relievers unnecessarily heading into whatever comes next on the schedule. Getting length from Leahy is a priority.
- Situational hitting: Citizens Bank Park rewards teams that cash in runners in scoring position. Leaving runs on base against a quality Phillies staff is a fast way to drop a game you had in hand.
Broadcast Information
Cardinals fans can catch Sunday's game on Cardinals.TV Presented by bet365, or listen on KMOX 1120 AM/104.1 FM. Philadelphia-market viewers can find the game on NBCSP and 94 WIP on the radio. Spanish-language coverage is available on 106.1 Rumba.
Prediction
This is a tough environment to steal a win, and the Cardinals are working with limited public information on where Leahy stands heading into this start. Philadelphia at home in August is never a free afternoon. That said, St. Louis has shown the ability to compete on the road, and a sharp outing from Leahy — even five or six quality innings — would set the bullpen up to finish the job. Call it a tight, low-scoring contest that comes down to which offense breaks through first. Cardinals 4, Phillies 3.
