Borderline penalty wipes out spectacular go-ahead Chiefs TD in loss to Bills, leaving Patrick Mahomes livid

For a moment on Sunday, the Kansas City Chiefs had a go-ahead score for the ages in a critical AFC matchup against the Buffalo Bills.

But a critical penalty wiped it out it in an eventual 20-17 Bills win.

With Kansas City trailing 20-17 in the final two minutes of regulation, Patrick Mahomes hit a wide open Travis Kelce over the middle of the field on second-and-10 from the Buffalo 49-yard line.

Kelce ran toward the end zone from the 30-yard line, then spotted Kadarius Toney standing by himself near the left sideline. He lateraled the ball to Toney, who ran untouched into the end zone for what looked like a thrilling go-ahead touchdown in front of a frantic Kansas City crowd.

For a moment on Sunday, the Kansas City Chiefs had a go-ahead score for the ages in a critical AFC matchup against the Buffalo Bills.

But a critical penalty wiped it out it in an eventual 20-17 Bills win.

With Kansas City trailing 20-17 in the final two minutes of regulation, Patrick Mahomes hit a wide open Travis Kelce over the middle of the field on second-and-10 from the Buffalo 49-yard line.

Kelce ran toward the end zone from the 30-yard line, then spotted Kadarius Toney standing by himself near the left sideline. He lateraled the ball to Toney, who ran untouched into the end zone for what looked like a thrilling go-ahead touchdown in front of a frantic Kansas City crowd.

The lateral did not appear to be designed. Instead, Kelce appeared to see an opportunity and improvised. One of the game’s most exciting players helped secure what looked like one of the most exciting touchdowns of this or any season.

But a flag was thrown at the line of scrimmage just after the snap. Toney lined up with his right foot in the neutral zone. He was called offside, and the play was nullified.