Pereira (hand) began a rehab assignment with Triple-A Memphis on Thursday, going 1-for-3 with an RBI single along with two walks.
It was the first game in nearly a month for Pereira, who is working his way back from a left hand contusion. It's unclear whether the 25-year-old outfielder will need any more rehab contests, but he's poised to rejoin the Cardinals' active roster before the regular season concludes. Once he does return, Pereira could see playing time versus lefties.