Musgrove was placed on the 10-day disabled list Tuesday due to shoulder discomfort, Jake Kaplan of the Houston Chronicle reports.
It's unclear when this injury cropped up, especially considering he tossed seven scoreless innings in his most recent outing Saturday. No word has emerged on how long he's expected to be out, either, but David Paulino will take his spot in the rotation until Musgrove is back and ready for action again.