Carpenter (oblique) was placed on the 15-day DL on Thursday, Jenifer Langosch of MLB.com reports.
Carpenter sustained a high oblique strain while taking a swing during Wednesday night's game. While the Cardinals are yet to offer a timetable, Carpenter is expected to miss several weeks, likely beyond the requisite 15 days. Kolten Wong, who is in Thursday's lineup, figures to be the primary beneficiary while Carpenter is out.