Wacha (9-6) allowed five runs on seven hits and two walks while striking out three across four innings to take the loss Saturday against the Pirates.
Wacha gave up a pair of two-run homers in a five-run second inning, and he was unable to give the Cardinals a chance to gain a road victory. Although he's been effective in the majority of his starts, Wacha has allowed at least four earned runs in three of his last six starts to raise his ERA from 3.71 to 4.08. He'll make his next start Friday against the Rays.