Buffalo’s James Cook, Pittsburgh’s Najee Harris, Minnesota’s Cam Robinson and Washington’s Zach Ertz are among the players who could determine the outcome of this weekend’s games.

Here's everything you need to know for the six wild-card NFL games. Which teams will win, who are the X factors, and which storylines matter most?

Though as the AFC’s top seed, the reigning two-time Super Bowl champs get to rest during Wild-Card weekend. The 12 teams playing have more immediate priorities than the Chiefs, but the end goal remains: lift the Lombardi Trophy in New Orleans.