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Betting Takeaways from ESPN's Week 8 NFL Power Rankings: Can the Vikings slow down the Cowboys?

Dak Prescott and the Cowboys have continually beaten market expectations this season. Kevin Jairaj-USA TODAY Sports

Some surprising teams are starting to rise to the top of the NFL Power Rankings after seven weeks of the season.

Who could have imagined the Arizona Cardinals would be a very deserving No. 1 on the list? Kyler Murray & Co. have answered the bell at every chance.

Then there's the Dallas Cowboys. We knew they had a great offense, but they're the only undefeated against-the-spread team in the NFL at this point. The Cowboys were winless ATS last season in games Dak Prescott played. Now, they can't lose.

The Cincinnati Bengals are a couple of 3-point losses from being undefeated alongside the Cardinals. While every team in the AFC -- Kansas City included -- has at least two losses, there are five teams in the NFC with one loss or fewer.

Let's dive into the week ahead and some of the teams I'm looking at:

Dallas Cowboys (6)