The opening weekend of the NFL season was capped by a pair of unlikely comebacks led by the reigning MVP and a quarterback making his NFL debut.

Josh Allen and the Buffalo Bills overcame a 15-point deficit in the fourth quarter on Sunday night to beat Baltimore 41-40 in one of the most improbable comebacks in recent history.

J.J. McCarthy and the Minnesota Vikings followed that up a night later against Chicago when McCarthy became the first QB in four decades to erase a 10-point hole in the fourth quarter and win in his NFL debut.

A look deeper inside the numbers shows how surprising both games truly were.

Let's start with McCarthy and the Vikings. After sitting out his rookie year with a knee injury, McCarthy struggled in the first three quarters of his debut before throwing two TD pa

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