Johnson (knee) returned to a full practice Thursday, Teresa Varley of the Steelers' official site reports.
Johnson's full participation Thursday sets the stage for him to return to action Sunday against the Packers after sitting out the team's Week 3 contest. Meanwhile, Chase Claypool was added to the Steelers' Week 4 injury report after being limited by a hamstring issue Thursday, while JuJu Smith-Schuster (ribs) logged a limited session following a DNP on Wednesday. Look for Friday's final injury report to provide added clarity with regard to the health and availability of the trio heading into the weekend.