IRVING (December 24, 2012) -- The Dallas Cowboys should know this drill by now.
The only thing left is figuring out how to win a playoffs-or-bust game at an NFC East rival in the final game of the season.
The Cowboys flopped badly in Philadelphia in 2008, and were better but still not very good last season at the New York Giants.
Dallas gets another chance Sunday night at Washington against Robert Griffin III and the Redskins (9-6), who could still make the postseason even if they lose.
The Cowboys (8-7) briefly lost control of their playoff fate with Sunday's 34-31 loss to New Orleans in overtime, but got it back when the Giants lost at Baltimore.
Dallas lost to the Redskins on Thanksgiving.