Alzolay (hamstring) is scheduled to make a rehab start with Triple-A Iowa on Wednesday, Meghan Montemurro of the Chicago Tribune reports.
Alzolay is set to throw about three innings in his first rehab outing, and he'll be evaluated afterward to make sure there's no soreness in his hamstring. The right-hander has been on the shelf since Aug. 14 with a hamstring strain, and he'll likely need at least one more rehab start after Wednesday's before rejoining the big-league rotation.