Arkansas coach Bobby Petrino says freshman running back Kody Walker has had surgery to repair a stress fracture in his shin. Petrino didn't indicate Wednesday how many games Walker would miss for the No. 10 Razorbacks (5-1, 1-1 Southeastern Conference). He only said it "will take a while for that to heal." Walker has five touchdowns this season for Arkansas, gaining 68 yards on 20 carries. However, he hasn't had a carry since the Razorbacks' third game against Troy. Read more: http://espn.go.com/college-football...razorbacks-kody-walker-following-surgery-shin
