Dominguez (elbow) was transferred to the 60-day injured list Saturday, Todd Zolecki of MLB.com reports.
The transaction was merely a procedural move, as the Phillies needed to open up a spot on the 40-man roster for the newly acquired Mike Morin. Dominguez has been shut down since early June with a UCL injury in his right elbow and is without a clear timeline to return from the IL.