These guys are the most consistently hardest to bring down. Running back is a special position; they are the most abused by far from a physical standpoint. But the great ones are the ones that abuse NFL defenders, running with ill intent and violence, ferociously moving a pile of bodies, bulldozing their way into the endzone. Other greats could juke past would-be tacklers with finesse, hopping over the goal line for a touchdown. Many running backs have run the ball since the beginning of the league, but only a few stand above them all. These are the 10 Hardest-To-Tackle Runningbacks in NFL history.