Carpenter did not make the trip to Pittsburgh, according to Langosch. He sat out Thursday's game against the Chicago Cubs and left last Sunday's game early due to lightheadedness.
The 29-year-old leads the Cardinals with five home runs and 20 RBIs this season. He's hitting .333 with a .620 slugging percentage and has an MLB-leading 14 doubles.
Carpenter is in his fifth season in St. Louis.
The Cardinals enter Friday with the best record in the majors at 21–7.
- Molly Geary