The 49ers got LB Dre Greenlaw (calf) back for a limited practice Wednesday. He missed the last game (Week 8) with the injury that knocked him out of the loss to the Chiefs. We'll watch to see whether he's ready to return to the lineup this Sunday against the Chargers. DL Arik Armstead (foot, ankle) remained out Wednesday, which doesn't bode well for his chances of playing for the 1st time since Week 4. EDGE Samson Ebukam (quad, Achilles') also didn't practice.