11. Chuck Cecil – Green Bay Packers:
Cecil was a runaway freight train famous for leading with his head. His style of tackling was vicious, but also inaccurate as he launched himself into his opponents like a missile.
He was repeatedly fined for leading with his helmet, and his career did not last all that long because he did. Despite the fact that he wore a special helmet with additional padding due to his violent style, he was forced into retirement after sustaining multiple concussions.