Yeah, that’s true. Everyone is different, and there comes a point where the body is just no longer willing. Guys like Emmitt and Marcus Allen and Walter were able to play at a high level relatively late. Others, like LT and Curtis Martin and Thurman Thomas, would still be playing if their bodies would just let them.

Great point — many of the great backs had an amazing work ethic and had longer careers.

…but about Tomlinson? Based on character and work ethic, he should have played longer. Emmett Smith played 15 seasons, Tomlinson 11. Interesting to note: identical CarAV.