Kolten Wong singled, was hit by a pitch, and stole a base in three plate appearances as the Cardinals were defeated by the Pirates on Thursday.
Shelby Miller took his eighth loss, allowing four runs in five innings to the Pirates on Thursday.
Cardinals recalled C Audry Perez from Triple-A Memphis.
Cardinals placed C Yadier Molina on the 15-day disabled list with a right thumb injury.
Yadier Molina has been diagnosed with a torn ligament in his right thumb and will undergo surgery.
Cardinals left-handed pitching prospect Tim Cooney tossed eight innings of one-run ball on Wednesday for Triple-A Memphis, scattering three hits while fanning eight.
Yadier Molina will undergo an MRI on his sprained right thumb to determine the severity of the injury.
Lance Lynn held the Pirates to two runs in 6 2/3 innings to pick up his 10th win Wednesday.
Trevor Rosenthal pitched a scoreless ninth against the Pirates for his 27th save on Wednesday.
Kolten Wong homered again Wednesday and walked twice as the Cardinals' No. 2 hitter.
Yadier Molina left Wednesday's game against the Pirates with a right thumb sprain.
Kevin Siegrist (forearm, shoulder) threw a bullpen session Wednesday and said he's ready for a rehab assignment.
Kolten Wong hit a walk-off home run, the second in as many nights for the Cardinals, to defeat the Pirates 5-4 on Tuesday.
Oscar Taveras had the first multi-hit game of his major league career on Tuesday, finishing 2-for-4 with a run scored against the Pirates.
Carlos Martinez allowed four runs, all on home runs, on eight hits over six innings of a no-decision against the Pirates on Tuesday.