There's still not a new champion in the AFC East. The Bills stormed back from a 21-point deficit to defeat the Patriots and snap New England's 10-game winning streak on Sunday. There are only 10 teams still alive for the postseason in each conference.

Result: The Steelers were the very last team to secure a playoff spot, and it took a missed field goal by the Ravens as time expired to do it. Pittsburgh wins the AFC North and earns the No. 4 seed, which means it will host the Houston Texans in the wild-card round. The Ravens are sent home for the season in painful fashion.

The NFL playoffs are one week away and most of the field is set entering Week 18. Here's what to know about the postseason format and bracket.