Miller (elbow) is set to begin a rehab assignment with Triple-A Memphis on Tuesday, Jeff Jones of the Belleville News-Democrat reports.

The right-hander last pitched for the Cardinals on Aug. 15 prior to being placed on the 10-day injured list. Once healthy, he will likely return to serving as a low-leverage reliever for the team as he sports a 7.80 ERA in 19 appearances in the majors this season.

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