NFL Power Rankings entering Week 5: Chiefs are all the way back at 4-0, though injury concerns linger

Key Points:

• The Kansas City Chiefs remain undefeated at 4-0, showing strong performance despite last season's struggles and injuries to key receivers; Patrick Mahomes looks healthy and running back Kenneth Walker has added a new dimension to the offense.
• The Miami Dolphins, Tennessee Titans, Tampa Bay Buccaneers, and Los Angeles Chargers all start the season 0-4, facing significant challenges including poor offensive performances and injuries.
• The San Francisco 49ers hold the top spot in the NFL power rankings at 4-0, with a dominant offense leading the league in expected points added per play, poised to solidify their status with an upcoming game against the Seattle Seahawks.
• The Buffalo Bills dropped from first to fifth in the rankings after a loss to the Patriots, highlighting defensive struggles despite a strong offense led by Josh Allen.
• The Chicago Bears and Jacksonville Jaguars have shown notable defensive improvements and strong overall performances, ranking sixth and fourth respectively, while teams like the New York Jets and Washington Commanders are struggling with injuries and inconsistent play.