Cardinals GM John Mozeliak acknowledged Tuesday that Michael Wacha (shoulder) is experiencing a recurrence of the scapular issue that sidelined him in 2014.
Cardinals placed RHP Michael Wacha on the 15-day disabled list with right shoulder inflammation.
Michael Wacha gave up four runs over just five innings but escaped with a no-decision in Monday's 5-4 comeback win over the Reds.
Michael Wacha yielded two runs in five innings Wednesday in a victory over the Reds.
Michael Wacha allowed three runs over six innings in Thursday's win over the Marlins.
Michael Wacha gave up two runs over six innings Friday in a no-decision against the Dodgers.
Michael Wacha was charged with three earned runs in just four innings Sunday in the Cardinals' loss to the Marlins.
Michael Wacha indicated that he was fine late Friday after getting drilled in the heel by a ground ball in the seventh inning of Friday's start against the Brewers.
Michael Wacha limited the Brewers to two earned runs over five innings Sunday for his fifth win.
Michael Wacha fought to earn a quality start Tuesday, allowing four runs -- three earned -- on nine hits over six innings in a win over the Royals.
Michael Wacha held the Cubs to two earned runs over 6 2/3 innings Wednesday in a Cardinals win.
Michael Wacha lost despite holding the Rangers to one run in 7 2/3 innings on Friday.
Michael Wacha hurled seven strong innings against the Pirates on Friday night, allowing only two runs on three hits to go with five strikeouts and three walks but did not get a decision.
Michael Wacha surrendered four earned runs over five innings Saturday in a no-decision versus the Giants.