Redskins running back Tim Hightower left Sunday's game against the Panthers early in the third quarter with an injury to his left knee. Hightower tried to walk off the field, but had to be helped by teammates. He was carted off the field and taken to the locker room. Earlier, the Redskins lost receiver Santana Moss to a left hand injury. By the end of the half, Moss was seen wearing a bulky wrap around the hand.