The Greatest Running Backs that Left a Mark in NFL History

Frank Gore

Franklin Gore Sr. has been an NFL running back for 16 seasons. He has been switching teams throughout his career but he stayed longest with the San Francisco 49ers (2005 to 2014).

Source: Wikipedia

Gore currently holds third place in most NFL career rushing yards at 16,000. He also holds the NFL record for games played by a running back. His career has been admired by his peers for his longevity, which is quite rare for running backs.