Abel (elbow) will begin a rehab assignment at Triple-A St. Paul on Wednesday, Dan Hayes of The Athletic reports.
Wednesday will mark Abel's first time pitching in a game since he landed on the injured list in late April due to right elbow inflammation. He's scheduled to throw roughly 50 pitches or three innings during his first minor-league start and will most likely require a couple rehab outings beyond that before the Twins activate him.