The Cardinals will recall Kloffenstein from Triple-A Memphis on Thursday, Katie Woo of The Athletic reports.
EDGE Analysis
Kloffenstein has spent all season with Memphis, posting a 3.97 ERA and 1.13 WHIP through 77 innings across 14 starts. Although he has been used almost exclusively as a starter throughout his minor-league career, he will likely be used as a multi-inning reliever while with St. Louis. The 23-year-old righty will be making his MLB debut whenever he gets into a game.