PONTIAC, :  This 21 December 1997 file photo show Detroit Lions Barry Sanders as he is carried off of the field by his teammates after  he became one of three players to rush for over 2,000 yards in a season against the New York Jets 21 December 1997 at the Pontiac, Mich, Silverdome. Sanders will reportedly announce his retirement from football after a 10-year career. AFP PHOTO Jeff KOWALSKY (Photo credit should read JEFF KOWALSKY/AFP via Getty Images)