The Green Bay Packers and New England Patriots came in to the postseason as the top seeds and the favorites to make the Super Bowl.
Both teams feature elite quarterbacks and high-powered offenses that have driven them this season. They also share questionable secondaries as they are the two worst passing defenses in the league. Still, that hasn't stopped them from blowing out opponents and appearing championship ready.
However, after the first round of the playoffs, a series of new challenges have arisen for each team.
The Patriots have to go head on with "Tebowmania" again next weekend. They were able to handle him in their first meeting this year, but he is coming in to this matchup with even more momentum than before. It'll be interesting to see how each team approaches this game the second time around.
Even if the Patriots get past Tebow, they will be facing an incredibly tough defense regardless of whether it is Houston or Baltimore. We've seen tough defenses slow the Patriots down in the past, so it could be a very long road to the Super Bowl for New England.
The Packers face just as many obstacles in the NFC.
They take on the New York Giants in a rematch of a closely contested battle from Week 13. The Giants were one stop away from giving the Packers their first loss. New York is playing its best football of the year and will be a tough challenge for Green Bay.
If the Packers get through the Giants, they'll either face a brutal defense in the San Francisco 49ers or the hottest quarterback in the league in Drew Brees. Each opponent brings their own challenges, but both will make for tough contests.
They may still be the No. 1 seeds and still have home-field advantage, but they may no longer be the runaway favorites.