Kiekhefer will be recalled from Triple-A Memphis to take Tyler Lyons' spot in the bullpen, Jenifer Langosch of MLB.com reports.
With Lyons moving to the disabled list with a stress reaction in his knee, Kiekhefer may get a chance to enjoy an extended stint in the majors. He's posted a 4.85 ERA and 1.15 WHIP across 13 innings pitched for the Cardinals, and a 2.00 ERA and 1.22 WHIP in 27 innings at the Triple-A level this season.