The Buffalo Bills are one of only two teams in the NFL still with an unblemished record in 2025. After defeating the New Orleans Saints (0-4) in Week 4 in a 31-19 final, the Bills and Philadelphia Eagles are the only two sides still sitting at 4-0.

The New Orleans Saints dropped to 0-4 against the Buffalo Bills after a hard-fought game. While New Orleans would come away winless, there were plenty of positives to take from the Saints’ loss to one of the best teams, if not the best team, in the league.

The Super Bowl champion offensive lineman signed with the Bills as a free agent following a season filled with setbacks in 2022 with the Los Angeles Rams. Two concussions forced him out of the lineup for a year after only four games. He arrived in Buffalo with serious questions about his future as a player.

Check out Josh Allen's immediate reactions on the field following the Bills' 31-19 win over the Saints in Week 4.

Buffalo is one of three undefeated teams in the AFC, the other being the Indianapolis Colts, and one of just six overall along with the Philadelphia Eagles, Tampa Bay Buccaneers and San Francisco 49ers.

NFL Week 5 power rankings look at why we rank every team where they are ranked this week, from No. 32 Titans to either the Bills or Eagles at No. 1.

After putting up 31 points against the New Orleans Saints (0-4) in Week 4 in a 31-19 win, the Bills have started their 2025 season with four wins which saw Buffalo score over 30 points in each game. The last time that happened was 1992 when Buffalo went to their third of four Super Bowl appearances.

Bills remain near the top of NFL rankings despite missing key defensive players like Matt Milano and Ed Oliver, with most outlets keeping them second behind Philadelphia.

Four undefeated teams fell in Week 4 of the 2025 NFL season, as the Los Angeles Chargers lost as favorites to the New York Giants, the Indianapolis Colts lost a

"With Seahawks star CB Devon Witherspoon returning on Thursday, teams are monitoring Pro Bowl CB Riq Woolen as a possible trade target by the deadline, sources tell The Insiders," Ian Rapoport reports. "Woolen’s playing time has diminished, and in a contract year, teams believe he could be available."