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

The situation came on the other side of the two-minute warning on Sunday night. With Kansas City clinging to a 32-29 lead, Allen and the Bills faced a do-or-die 4th-and-5 situation on their own 47-yard line. With Buffalo holding all three of their timeouts, Sean McDermott left his offense on the field to try and convert fourth down.

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

Stopping the Josh Allen tush push was a major part of the game and it is the play that is still being discussed as a lot of people think that it should've been a first down. It wasn't, and Chiefs defensive coordinator Steve Spagnuolo spent a lot of time getting his team ready for plays just like that.

Ex-NFL star Brandon Marshall compared Josh Allen's struggles to get past Patrick Mahomes and the Chiefs to those who had to face Michael Jordan and Tiger Woods.

Hurts largely succeeded against the blitz on the NFC side of the playoff bracket. But the Los Angeles Rams, who sacked Hurts seven times in Philadelphia’s 28-22 win in the divisional round, gave the Eagles quarterback considerable trouble. Oftentimes it appeared his checkdown options were ill-placed or covered up entirely.

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. But it's never easy preparing for the Bills and quarterback Josh Allen,

Chiefs defensive coordinator Steve Spagnuolo pulled out one of his best calls when his team needed it against the Bills.

Fitz says that the solution to Allen's fourth-down incompletion against the Chiefs wasn't as easy to find in real time.

Josh Allen and the Bills were in top form, but they still couldn't manage to vanquish Patrick Mahomes and the Chiefs in the AFC title game.

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

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,