Another way to look at it...

The Vikings game is at Noon, while the Packers and Cowboys/Eagles games are at 3pm. If the Vikings win the early game, the Packers are playing Arizona no matter what. If the Giants win the game, then... if the Packers win, they are playing Arizona no matter what. If the Giants win the early game and the Packers go on to lose, they will play Dallas (if Dallas wins) or they will play Minnesota (if Philly wins).

Who will the Packers' play in the 1st round?

There are 3 games this week that will determine who/where the Packers play in the 1st round of the playoffs. The games are: PHIL at DALL, NYG at MINN & GB at AZ. There are 8 possible outcomes from these games. 6 of the 8 outcomes have the Packers playing at the AZ Cardinals. 1 of the outcomes has the Packers playing at the DA Cowboys. AND wouldn't you believe it... the last possible outcome has the Packers playing at the MIN Vikings. SO, you can assume the Packers ARE playing Arizona unless one of these senerios unfolds...

WINNERS - NYG, PHIL, AZ = Pack play at MINN

WINNERS - NYG, DALL, AZ = Pack play at DALL.

The complete list can be found at here: http://espn.go.com/blog/nfcnorth/post/_/id/8150/every-nfc-playoff-scenario-for-week-17