Wainwright (groin) is scheduled for another bullpen session Sunday, John Denton of MLB.com reports.

EDGE Analysis

Wainwright made it through a 28-pitch side session Thursday without issue and could soon embark on a minor-league rehab assignment if Sunday's workout also goes smoothly. The veteran right-hander was placed on the injured list just before Opening Day after suffering a groin strain while doing weight training with Team USA in the World Baseball Classic. Jake Woodford is currently filling his spot in the Cardinals' rotation.