While the Green Bay Packers remain a favorite in the NFC, questions swirl around the Denver Broncos despite an identical record on the opposite side of the league. Which team is a true contender might become more clear Sunday night when the conference powers come off bye weeks to meet in Denver. This is just the fourth time in NFL history that two undefeated and untied teams have met this deep into a season, the last happening in 2007 when New England (8-0) beat Peyton Manning and Indianapolis (7-0).
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