Posted by ESPN.com's Bill Williamson
Something has to give in Charlotte on Sunday.
The Denver Broncos finish NFC portion of their schedule at Carolina. The Broncos head to Carolina with a 3-0 record against NFC South teams. Carolina welcomes the Broncos and it enjoys a 3-0 record against the AFC West.
Unless there is a Donovan McNabb special, one of these teams will lose its perfect record against the other conference. Of course, they are the only teams in their respective divisions to have perfect records in their out-of-conference games this season.
Here is a look at both Denver and Carolina's games against nonconference foes this season: