Spangenberg was returned to Triple-A Memphis on Friday.
Spangenberg had his contract selected from Triple-A Memphis on Tuesday, Jeff Jones of the Belleville News- Democrat reports.
Spangenberg was reassigned to minor-league camp Monday, John Denton of MLB.com reports.
Spangenberg signed with the Cardinals as a non-roster invitee Friday.
Spangenberg re-signed with the Seibu Lions of Japan's Nippon Professional Baseball on Thursday, Yahoo Japan reports.
Spangenberg signed a contract with Seibu on Thursday, Patrick Newman of NPBTracker.com reports.
Spangenberg was outrighted to Triple-A San Antonio on Friday and elected free agency.
Spangenberg will start in left field and bat sixth Sunday against the Rockies.
Spangenberg went 2-for-3 with a triple and three RBI in Monday's victory over the Padres.
Spangenberg is not in the lineup for Thursday's game against the Marlins.