The 39-year-old Peralta has been on the disabled list since April 26 with a pinched nerve in his neck. He reported to Spring Training with what was described as right shoulder discomfort.
Peralta was acquired over the winter to help provide a late-inning bridge to closer Kenley Jansen, a problem that has plagued the Dodgers this year.
Ken Gurnick is a reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.