We've made it to the 2019 NFL playoffs. After 17 weeks of ups and downs and overreactions of all kinds, the playoff matchups are set. From here on out, there's no more speculation or projection -- only proof. You win, you keep playing. You lose, you're done.
But there's still some mystery about this whole endeavor, and more than a few questions this NFL postseason will help us answer. Let's take a look at five of them:
Is this Tom Brady's last run in New England?
There has been plenty of speculation about whether Brady, 42, would leave the Patriots at the end of this season, either via retirement or to finish his career elsewhere.