Arizona clinches the NFC West with a win , but a Seattle victory keeps the door open for the .
Nearly every game on Sunday will affect the postseason , but perhaps the most significant is the Sunday night showdown between the Cardinals and Seahawks .
Cardinals clinches the NFC West with a win , but a Seahawks victory keeps the door open for the .
Nearly every game on Sunday will affect the postseason , but perhaps the most significant is the Sunday night showdown between the Cardinals and Seahawks .