Miley struggled Sunday, allowing six runs on eight hits and four walks while striking out four in 4.1 innings in the Diamondbacks' 8-3 loss to the Rockies. Miley had allowed five runs in his previous three starts, so it doesn't seem as though he's slumping. The eight hits are the most he's let up since Aug. 21. Still, his ERA for September is a respectable 2.81.