Grandal (knee) will be activated off the injured list Friday, Jesse Rogers of ESPN.com reports.
Grandal has been out since early July after undergoing surgery to repair a torn tendon in his left knee. He's gotten into a full 11 rehab games and has looked good, hitting .303. He should return to his role as the primary catcher down the stretch, though the White Sox likely won't want to overwork his surgically repaired knee, so he could get more days off than usual over the next few weeks.