Don't be embarrassed if you don't know why. That's why you're here.
The game will be talked about because Brett Favre, the Vikings starting quarterback, used to be the long-time quarterback of the Packers. Favre lead the Packers to a Super Bowl victory and was beloved in Green Bay. Now, he's playing for a team that Packers fans detest. (FYI - Favre played last year for the NY Jets before joining The Vikes.)
They'll be a lot of chatter about this match up. So, here's your heads up. When it's brought up around the office (or bar or gym), chat about how Favre will match up against his former teammates, how his former back-up Aaron Rodgers is leading the Pack and which team is better off now. You'll hear a lot about Favre's waffling about whether to play again but don't let that distract you from THE GAME.
Either way, it's gonna be fun.