Blach (3-7) yielded five runs on five hits and two walks over four innings Sunday, striking out one and taking a loss against Baltimore.
Blach was promoted from Triple-A Albuquerque for his first MLB appearance since July 26. He gave up one run through three innings before Baltimore's four-run fourth frame, capped off by James McCann's two-run blast. Blach now owns a 6.65 ERA with a 35:18 K:BB through 67.2 innings with Colorado this season. He's currently scheduled to start in Milwaukee next weekend, but it's unclear if he'll get another turn in the rotation.