MLB · September 12, 2026

Cardinals Bullpen Collapses, Lifting White Sox Past St. Louis

The Chicago White Sox edged the St. Louis Cardinals 6-5 in a contest defined less by offensive firepower and more by the unraveling of a notoriously fragile relief corps in St. Louis. While the final score suggested a close contest, the outcome was heavily dictated by a series of late-inning defensive failures that allowed Chicago to capitalize on an exceptionally volatile ninth inning.

Before the first pitch, the analytical position for the White Sox rested entirely on the hope that Sean Newcomb would outduel Kyle Leahy and, crucially, that Chicago’s bullpen would remain the stabilizing force the forecast emphasized. The prediction acknowledged high volatility but leaned on the strength of the Chicago side to bridge the gap, assuming the Cardinals’ starting pitching would be sufficient to keep the game manageable before the White Sox bullpen took over.

That pre-game case proved fundamentally flawed because it underestimated the depth of the Cardinals’ bullpen crises. St. Louis entered the game with the worst earned run average in the National League for the second half and had already blown thirteen saves. The prediction’s assumption of a manageable late-inning situation ignored the reality of closer Riley O’Brien, who had blown eight saves this season and surrendered a go-ahead two-run homer in the ninth. Even more damaging was the tactical error of using Cooper Hjerpe on short rest; after a perfect debut the previous day, Hjerpe walked the bases loaded in the fifth inning, yielding four runs and shattering the foundation of the original forecast.

On the field

Nathan Church powered the White Sox offense with three hits, shattering his 0.8 average to drive the winning run. The Cardinals’ defense struggled to contain Chicago’s bats, as Grant Taylor surrendered three hits, a sharp rise from his 1 average. Meanwhile, Miguel Vargas provided a rare bright spot for St. Louis, striking out three times despite his 0.7 average, but it wasn't enough to overcome Chicago’s timely hitting. The White Sox secured the 6-5 victory thanks to Church’s standout performance and Taylor’s inability to hold the line.

Game clips

Chicago White Sox vs St Louis Cardinals: Game Highlights
Leonardo Bernal crushes a home run
Randal Grichuk crushes a home run
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Images and videos courtesy ESPN