NFL Week 4 early games: Ravens jump out to big lead over Bills, but Josh Allen battles back

Josh Allen and the Bills are looking to get back on track after a loss in Week 3. (Photo by Eric Espada/Getty Images)
Josh Allen and the Bills are looking to get back on track after a loss in Week 3. (Photo by Eric Espada/Getty Images)

The early window of NFL Week 4 includes a potential AFC Championship preview when the Buffalo Bills visit the Baltimore Ravens, while the Philadelphia Eagles look to remain the league's last unbeaten team in a game against the Jacksonville Jaguars at home.

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