Rumbelow (elbow) was recalled from Triple-A Scranton/Wilkes-Barre on Friday and placed on the 60-day DL.
This was merely a procedural move to free up a spot on the 40-man roster with active rosters in the major leagues expanding to 40 players on Sept. 1. Rumbelow underwent Tommy John surgery early in the season and almost certainly won't be available to begin 2017.