Petty allowed four runs on six hits and one walk while striking out one over five innings in a no-decision against the Cardinals in Game 2 of Saturday's doubleheader.
Making a spot start, Petty allowed a run in the second inning before surrendering a three-run homer to Jordan Walker in the sixth. He threw 40 of 62 pitches for strikes but induced only three whiffs while yielding 10 hard-hit balls. The 23-year-old has now allowed seven earned runs across 10.2 frames with the Reds while recording just two strikeouts. He'll likely return to Triple-A Louisville following Saturday's contest.