Five spots are all set in the AFC, while the NFC has locked down four postseason berths. Here are the playoff-clinching scenarios for this weekend.

The Atlanta Falcons caught a major break in the form of a Tampa Bay Buccaneers loss on Sunday night football. That loss propelled the Falcons to first place in the NFC South due to holding the tiebreaker over the Bucs.

What does it mean? What are the pertinent factors (and, perhaps, tiebreakers) prominently in play as each conference's seven-team bracket begins to crystallize? All will be explained and analyzed up to the point when the postseason field is finalized on Sunday,