Motter elected free agency Thursday.
Motter cleared waivers and was outrighted to Triple-A Memphis on Wednesday.
Motter was designated for assignment Monday.
Motter is out of the lineup for Sunday's game against the Mets.
Motter was added to the lineup for Monday's game against the A's
The Cardinals selected Motter's contract from Triple-A Memphis on Sunday. He'll start at second base and bat eighth in the Cardinals' series finale with the Cubs.
The Cardinals outrighted Motter to Triple-A Memphis on Monday.
Motter was designated for assignment by the Cardinals on Saturday.
Motter signed a one-year, major-league contract with the Cardinals on Wednesday and was added to their active 26-man roster, Jeff Jones of the Belleville News-Democrat reports.
The Cardinals designated Motter for assignment Sunday, John Denton of MLB.com reports.