Peralta (shoulder) played catch Sunday, Adam McCalvy of MLB.com reports.
Peralta's throwing session Sunday was the first time that he had thrown since he was placed on the 10-day injured list with right shoulder inflammation Thursday. Manager Craig Counsell said Sunday that he's pleased with the right-hander's progress so far, and he's optimistic that Peralta will be able to return following a minimal stay on the 10-day IL.