2007 New England Patriots–New York Giants game

On December 29, 2007, during the final week of the 2007 season, the New England Patriots defeated the New York Giants, 38–35, at Giants Stadium in East Rutherford, New Jersey. In what became a preview of Super Bowl XLII, the game was a close comeback win for the Patriots, giving them the first undefeated regular season since the 1972 Miami Dolphins, the only undefeated regular season since the league expanded to 16 games, and the only undefeated 16 game season as the NFL season was expanded to 17 games in 2021.

Source: Wikipedia — 2007 New England Patriots–New York Giants game (CC BY-SA 4.0)