The Buffalo Bills (4-1) suffered their first loss of the season with a 23-20 defeat at home to the New England Patriots (3-2). Here's what we learned.

1 — NFL's last remaining unbeaten team falls in the final minute

For the first time since 2014, there are no more undefeated teams in the NFL after five weeks of the regular season. After the Eagles loss at home to the Broncos earlier Sunday, the Bills entered their primetime matchup as the lone remaining 4-0 team in the league.

Even a raucous white out crowd under the lights in Orchard Park crowd couldn't pull the Bills out of an uneven and uncharacteristic 60 minutes of football. Despite outgaining their opponent, winning time of possession and having more first downs, the Bills suffered their first defeat of the 2025 season.

"We just

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