The two biggest upsets of the 2025 NFL season happened simultaneously on Sunday, upending the NFC North in the process.

The Panthers were 13-point underdogs, but they beat the Packers 16-13 in Green Bay. That was the biggest upset of this NFL season.

At the same time that the Panthers were pulling off their upset, the 9.5-point underdog Vikings were beating the Lions in Detroit. That was the second-biggest upset of this NFL season. Prior to Sunday, teams favored by more than nine points were 11-0 straight up.

The Packers and Lions are the top two teams in the NFC North, and both of them losing, with the Lions losing to an NFC North rival and the Bears also winning, turned the NFC North into the NFL’s most competitive division. The Packers are now in first place at 5-2-1, the Lions are i

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