On the one hand, there are only three out of 12 playoff spots still up for grabs heading into the final week of the regular season. On the other hand, there are so many possibilities in terms on a) who gets those three spots; and b) where teams fall in the seeding. Here are the playoff scenarios heading into Sunday:

Eight teams have clinched playoff spots and the final four will book their ticket into the postseason either Monday night on in Week 17. The Falcons can clinch a spot with an upset win over the Saints on Monday night, while the Broncos, Raiders, Bengals, Jets and Titans are vying for the final two available spots in the AFC.

Seven down, five to go, two weeks left to figure it all out. Seven teams have clinched playoff spots and four more can do so this weekend: The cowboys, falcons and Lions in the NFC and — that’s right — Tim Tebow and the Broncos in the AFC. Of course, there’s still plenty of jockeying for playoff position – home-field advantage, byes, etc.

Congratulations to the Texans, who have clinched the first playoff berth in franchise history. With three weeks left in the season, there are still eight playoff spots up for grabs. And three teams – the Patriots, Ravens and Steelers – all have a chance to officially join the party this weekend.

With four weeks left in the season, there are still six division crowns and 10 total playoff spots up for grabs. Congratulations to the Packers and 49ers, who have clinched the NFC North and West, respectively. Meanwhile, here’s a look at what can happen this week.

This time last week, there was plenty of buzz that the 49ers had a chance to be the first team in the NFL this season to clinch a playoff spot. A loss to the Ravens on Thanksgiving night delayed that inevitability, and it also opens the door for the defending Super Bowl champs to become the first team this season with an asterisk next to their names in the standings.

With the New Orleans Saints clinching a playoff berth Monday night, here’s an updated look at the Week 17 playoff scenarios.

You don’t have to be a rocket scientist to figure out which teams can clinch playoff spots this weekend and what needs to be done for that to happen. All you need to do is check out this handy guide: