McDougal (forearm) has struck out five and allowed one hit and four walks over five scoreless relief innings since being reinstated from Triple-A Charlotte's 7-day injured list July 7.
Before hitting the shelf April 30 due to a right forearm flexor strain, all six of McDougal's appearances for Charlotte had come in the rotation. The White Sox could revisit developing the 23-year-old as a starter down the road, but in the short term he's being positioned to potentially join the big-league bullpen for the stretch run. The lanky right-hander has looked overpowering since moving to relief despite his control issues, and he'll likely need to show some improvement on that front before gaining any major momentum for a promotion.