NFL power rankings: Bills take over No. 1, 49ers and Steelers rise; Rams and Chargers plummet for Week 2

The Buffalo Bills have moved to the top spot in the NFL power rankings following Week 1 action. The San Francisco 49ers and Pittsburgh Steelers saw notable rises in the rankings, while the Los Angeles Rams and Los Angeles Chargers dropped significantly heading into Week 2. The rankings reflect the performances of all 32 NFL teams after the opening week of the season.