Injury is a big reason why the average career of a running back is so short . Running backs spend their careers colliding at high speed with people who are bigger than they are. It's important for an RB to know when to hang the helmet up. There are guys who have long careers, but any financial advisor to an RB needs to tell him not to count on being one of them.
Edit: for an indication of why running backs' careers are short, see this video of Donnie Shell tackling Earl Campbell.
Edit: for an indication of why running backs' careers are short, see this video of Donnie Shell tackling Earl Campbell.
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