ESPN NFL Football Power Index rankings for Sept. 22

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• ESPN Stats & Information

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Below are the ESPN Football Power Index rankings for Sept. 22, after Week 2 of the 2015 NFL season. For a full explanation on how the FPI is put together, please read this explainer. For more background, you can also read this Q&A with the developers of the FPI.

A few notes heading into Week 3:

The top three teams after Week 1 remained in those positions after Week 2.