Arenado is out of the lineup for Wednesday's game against the Marlins, Jeff Jones of the Belleville News-Democrat reports.
According to Jones, manager Mike Shildt indicated that Arenado is receiving a routine breather while the Cardinals and Marlins conclude their series with a day game after a night game. Matt Carpenter will fill in at third base for Arenado, who has gone 0-for-11 over the past three games to drop his season average to .273.