The Buffalo Bills erased a double digit deficit in the fourth quarter in dramatic fashion to beat the Bengals 39-34 Sunday at Highmark Stadium.

Here's what we learned from Bills-Bengals:

1 — How the Bills went from down 10 to leading by 11 in under five minutes

In less than five minutes of game clock, the Bills erased a 10-point fourth quarter deficit going from trailing 28-18 with 7:41 remaining to leading 39-28 with 3:09 to play.

"Never a doubt," joked QB Josh Allen, whose 40-yard touchdown scramble started the run of 21 unanswered points. "That was obviously a really tough game."

The most important part of Allen's run was how little time elapsed from the clock on the drive. On the prior offensive series, RB James Cook fumbled on the goal line with the Bills trailing 21-18. Cincinna

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