Bears backup running back is ready to haul a heavy load again this week after relieving injured David Montgomery last week. Khalil Herbert admitted to a little soreness after he had 20 carries for 157 yards in relief of David Montgomery Sunday during the 23-20 Bears win over Houston. It had been a while since he had that kind of workload. It’s possible he could really be sore this Monday. Herbert will start against the Giants with Montgomery out due to an ankle injury, and it shapes up as a possible classic battle of running games between the NFL’s second-leading…