Aaron Rodgers is having an MVP season and Green Bay's offense looked great again on Monday against Atlanta. But that was at home against an extremely weak defense.

Now the Packers are traveling on a short week to take on Buffalo, which has one of the best defenses in the NFL. The Packers are not familiar with the Bills' defense having last faced them in 2010. They will have one less practice and preparation day, too.

The Bills lead the league in sacks with 48. They rank in the top five defensively in total yards, scoring points and passing yards. As good as the Packers are, they are not going to have their way against this strong of a defense on the road.

If you discount the Packers' road game against the Bears, Green Bay is averaging 19.4 points in five away matchups.

The Packers' defense isn't as bad as they looked on Monday night. Their run defense is much improved, the linebacker play is better with A.J. Hawk playing less and the secondary remains the deepest in football.

The Bills are a ball-control, grind-it-out type of team due to the lack of playmaking skills of Kyle Orton. Going by percentage of time on the field, Orton has been sacked more than any other quarterback.

Cold weather, snow and wind also could become part of the equation any time you play a game in Buffalo this late in the year.