The Cardinals recalled Mautz from Triple-A Memphis on Saturday.
Mautz pitched three innings out of the bullpen during his lone MLB appearance this season, giving up two earned runs on four hits and two walks while fanning two batters May 25. He has since transitioned to working as more of a traditional reliever at Memphis and figures to continue doing so now that he's back with the parent club. Caleb Ferguson was designated for assignment in a corresponding move.