The Buffalo Bills are still in championship purgatory, and one play in particular doomed them, because they ignored one primary schematic trait from Steve Spagnuolo

Kansas City Chiefs DC Steve Spagnuolo dialed up an unexpected corner blitz in a pivotal moment against the Buffalo Bills.

Kansas City #Chiefs defensive coordinator Steve Spagnuolo shares rules for maintaining Buffalo #Bills QB Josh Allen: ‘He sees everything’ | @EdEastonJr

Defensive coordinator Steve Spagnuolo's use of the blitz could be Chiefs' key to beating the Bills in the AFC Championship Game on Sunday.

The Kansas City Chiefs host the Buffalo Bills on Sunday in the AFC championship game for an opportunity to advance to their third-straight Super Bowl and a chance to complete a three-peat.

Another week, another trip to the Super Bowl for the Kansas City Chiefs, and another coaching masterclass from Steve Spagnuolo. A key piece to Kansas City advancing to its fifth Super Bowl in the last six seasons and now set to attempt the NFL's first-ever three-peat was the defensive effort led by Spagnuolo,

The Kansas City Chiefs and Buffalo Bills may be familiar with one another because of the number of times they have matched up over the last five years, but that truth does not drive away the difficulty for Steve Spagnuolo in preparing for Josh Allen.

Spagnuolo’s first head coaching stint came with the St. Louis Rams from 2009 to ‘11. He also briefly served as the New York Giants’ interim head coach in 2017. The 65-year-old owns a sterling record in Kansas City, having won three Super Bowls and helped the Chiefs finish in the top-10 in scoring defense in five of his six seasons.

The NFL has been accused of doing something sneaky for Sunday's AFC Championship Game while hoping no one noticed.

It’s #Chiefs vs #Bills in the AFC Championship Game. Here’s how to watch, including time, channel, TV schedule and streaming info.