The Cardinals recalled Baker from Triple-A Memphis on Monday. He'll serve as the Cardinals' designated hitter and No. 6 batter in Monday's series opener in Miami.
Baker was up with the Cardinals for a couple weeks last month but played sparingly, with most of his limited opportunities coming against left-handed pitching. St. Louis is slated to face a few southpaws this week, so he could see a handful of starts before the All-Star break.