The Chicago Bears had never won in Lambeau Field with Jay Cutler as their quarterback, well that all changed over thanksgiving as the Bears managed to beat the Packers 17-13 amid heavy rain.
The shocking result gives the Bears their third win in Lambeau field since 2006.
The result couldn't have been any more painful for Packer fans as it came not just on thanksgiving, but on a day when legendary Packer Brett Favre had his jersey retired. Some would say the heavy rain was symbolic of sorts.
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On the other hand, this win is huge for the new John Fox regime in Chicago - bringing the Bears to 5-6 record that matches their overall wins from 2014 - not only does this put Chicago in a good position for achieving an 8-8 or even a 9-7 record, but it also gives the Bears a lot to build on for next year.
So how did the Bears pull of the upset? Let's discuss.
Firstly, Bears offensive coordinator Adam Gase deserves credit for calling great plays, and for continuously incorporating all the pieces on the Bears offence - again we saw Zach Miller catch a touchdown as did young receiver Marquess Wilson.
Something I also enjoyed seeing was the commitment to running the football, both Matt Forte and Jeremy Langford had over 11-carries each, and while the numbers weren't big, I love the commitment to the run John Fox has brought to Chicago - something that was missing under Trestman.
As for quarterback Jay Cutler, he had a statistically average night going 19/31 completions for 200-yards and a touchdown, but the area he has improved drastically is turnovers, having none on the night. This year under John Fox and Gase, Cutler has had a career-high 92.5 quarterback rating.
On the defensive side, the Bears rattled Aaron Rodgers all night long, despite only registering two sacks the Bears defensive front completely dominated the Packers offensive line, so much so that Aaron Rodgers seemed to be running out of the pocket every other play.
Cornerback Tracy Porter had a fantastic game - ironic that it was during Brett Favre's special night in Lambeau. The defensive back had an interception, plus a number of pass breakups, including a crucial third-down breakup that would have given the Packers the lead in the waining seconds of the game.
For the Packers, this loss might have proven that their performance against the Vikings was a fluke. The Packers receiver issues are a serious concern, Aaron Rodgers completed around 50% of his passes last night, not a stat you hear from Rodgers, ever.
The play calling also needs to take some blame, the personnel the Packers have been not suited to the down field plays that the Packers seem to run, Eddie Lacy needs to be fed the ball more.
Speaking of Lacy it's been nice to see him re-emerge over the past couple of weeks, the Packers defence has also played decent to well over the past couple of weeks also, they played well enough to win the game last night.
The reason the Packers are losing is because of Rodgers and the receivers, how many times have we seen the Packers score with a minute left? Especially when they have a minute left in the opposition's red zone. Well, not last night, none of the receivers could get open enough.
With this upset win over the Packers, the Bears keep themselves slightly alive in the playoff hunt. If the Packers continue to drop winnable games, the Bears can slowly sneak ahead of them. It's unlikely, very unlikely, but hey anything can happen in the NFL, the Bears just won in Lambeau didn't they?