Football coaches as a tribe like to downplay the "must win" scenario, at least publicly, but for the Green Bay Packers, the final four games of the season are just that.
If the Packers win out, they have a legitimate shot at the playoffs. Lose one game and it's over. Tickets prices for those games, three of which will be at Lambeau Field, reflect the it-will-soon-be-over outcome, but that could change quickly.

According to a neat interactive simulator by the New York Times, the Packers have a 6% chance of earning a wild card spot in the playoffs prior to the coming weekend's games.