Wainwright (0-1) tossed six innings in Sunday's Opening Day loss to the Pirates, allowing three runs on six hits and three walks while striking out three.
He eked out a quality start, but this wasn't exactly the kind of performance the Cardinals were hoping for from Wainwright after his abbreviated 2015 campaign. The righty's next start will come on the road this weekend against Atlanta, a much less dangerous opponent than Pittsburgh.