There's only one undefeated team left in the NFL. And we're through just four weeks.
And, no, it's not the Bills or Rams or Bucs or Chiefs.
It's the upstart Philadelphia Eagles, who look as explosive as anyone. And they play fun football. It'll be interesting to see how they respond to tough challenges in the future.
We know how Josh Allen responds to tough challenges. We saw that against the Ravens. We also saw Patrick Mahomes' team dominate Tom Brady's in a rare loss decided by more than one score in Week 5.
We also saw the Falcons rise way up in these power rankings after their second straight victory, this time over the Cleveland Browns.
Let's take a look at how the teams shake out in our Week 4 NFL Power Rankings;