Ober (groin) is scheduled to begin a rehab assignment with Single-A Fort Myers on Thursday, Do-Hyoung Park of MLB.com reports.
Ober tossed live batting practice without issue Monday and will now progress to the next phase of his rehab. Park notes that due to his extended stay on the injured list, Ober won't be stretched back out to a starting role but instead could be used in long relief once activated.