Charger RB LaDainian Tomlinson runs with the ball as the San Diego Chargers defeated the Kansas City Chiefs 20 - 9 on December 17, 2006 at Qualcomm Stadium in San Diego, CA. (Photo by Tracy Frankel/Getty Images)
Adrian Peterson was somehow still producing in the NFL 13 years after his debut in 2007. That is an extremely long career considering the often short shelf life of an NFL running back. Before he was one of the greatest of all time, though, he was a young upstart running back who broke a single-game record against the Chargers.