The Buffalo Bills claim the top spot in the Week 4 NFL power rankings despite turning the ball over five times in a 24-16 win over the Chargers. The 49ers, Chiefs and Raiders all sit at 3-0, though San Francisco lost key players to injury. The Seahawks tumbled after turnovers fueled a Washington Commanders comeback, and the Vikings moved to 3-0 but may have lost Justin Jefferson to an ankle injury. Across the league, the Bengals, Texans, Packers and others face mounting concerns heading into Week 4.
