The Las Vegas Raiders sunk to eight straight losses with a heartbreaking 19-17 defeat from Arrowhead Stadium against the Kansas City Chiefs. The Raiders (2-10) did plenty of things right, but it was their game-sealing mistake that will loom largest in this rivalry loss from GEHA Field.

Welcome to the Black Friday edition of the Week 13 grades! After giving us a traditional feast of games on Thanksgiving, the NFL returned with its newest tradition: A Black Friday game. And it was a wild one with the Kansas City Chiefs holding off the Las Vegas Raiders 19-17 in a game that wasn't sealed until Nick Bolton recovered a Raiders fumble in Kansas City territory with just 11 seconds left to play.