ST. LOUIS – The Cardinals have placed catcher Yadier Molina on the injured list with the right thumb and activated infielder, Matt Carpenter, as part of a series of alignment shifts on Thursday.
The Cardinals hope Molina will return to the game "within three weeks," coach Mike Shildt said Thursday.
His move to IL was retroactive to Monday. The star player nine times, who missed 12 games in May and June with a similar injury, was hit on Saturday, but has not started the match since July 3rd.
St. Louis will call on receiver Andrew Knizner of Triple-A Memphis before Friday's game against Arizona to replace Molina. Knizner made his big league debut on June 2, with a score of 0-7 for St. Louis.
The Cardinals also brought left-handed Chasen Shreve of Memphis, southpaw Tyler Webb and champion Rangel Ravelo to Memphis, and handed over pitcher Jordan Hicks 60 days before their series against Arizona on Friday night.
Carpenter has been on the sidelines since June 29 due to a sprain in the lower back.
Shreve played 20 games with the Cardinals last season and is 2-1 with a 3.80 ERA in 37 games for Memphis this season.
The information provided by The Associated Press has been used in this report.