ATHENS, Ga. — Georgia’s running back room took a hit on Saturday. Redshirt sophomore Branson Robinson left the game in the first half with a right knee injury. He went to the locker room and returned after the half with a brace on but did not re-enter the game. “I don’t know that it’s real serious. I think it’s an MCL, a knee, a sprain,” Georgia head coach Kirby Smart said during his postgame press conference. “I don’t know how serious it was because we don’t have the MRI results yet.” On the season, Robinson had rushed 22 times for 61 yards and two touchdowns entering Saturday’s win. He also …