Herrera is absent from the lineup for Thursday's contest against the Diamondbacks.
It's the first day off this season for Herrera, who has made 63 starts at designated hitter and 38 starts at catcher for the Cardinals this season. The 26-year-old is just 7-for-48 at the plate over his last 12 games. Alec Burleson is getting a start at DH, and Jimmy Crooks will do the catching for St. Louis.