Peralta (9-4) took the loss against St. Louis on Friday, completing two innings and allowing four runs one three hits and two walks while striking out four.
Peralta returned to action after missing over two weeks with right shoulder inflammation. He wasn't sharp in the brief appearance, as he needed 53 pitches to retire six batters and surrendered four runs for the first time since early May. The right-hander ended his outing on a high note, striking out the final two hitters he faced with a pair of runners in scoring position, but this was otherwise a disappointing outcome both for Peralta and for fantasy managers who roster him. The 25-year-old will look for better results his next time out, which is likely to come at Cleveland late next week.