Miller (elbow) cleared waivers and was outrighted to Triple-A Memphis on Thursday, Jeff Jones of the Belleville News-Democrat reports.
Miller (elbow) was designated for assignment by the Cardinals on Monday, Derrick Goold of the St. Louis Post-Dispatch reports.
Miller landed on the 10-day injured list with a right elbow strain Saturday.
Miller (elbow) was reinstated from the 10-day injured list Saturday.
Miller (elbow) is expected to return from the injured list Saturday, Jeff Jones of the Belleville News-Democrat reports.
Miller (elbow) is set to begin a rehab assignment with Triple-A Memphis on Tuesday, Jeff Jones of the Belleville News-Democrat reports.
Miller (elbow) is progressing well in his recovery and recently began playing catch, Jeff Jones of the Belleville News-Democrat reports.
Miller was placed on the 10-day injured list with right ulnar nerve irritation Wednesday.
Miller allowed two earned runs on a walk and a hit batsman over one-third of an inning in a win over the Reds on Sunday. He struck out one.
Miller picked up the save against San Francisco on Tuesday. He retired both batters he faced in the ninth inning.