The Chiefs dropped plenty of passes in their loss to the Eagles on Monday night, but none was more costly than Marquez Valdes-Scantling's whiff with less than two minutes remaining in the game.
As Kansas City trailed the Eagles 21-17 with 1:50 left, Patrick Mahomes dropped back and delivered a perfect ball over the top to Valdes-Scantling - though the ball went through his fingers as he failed to secure a would-be 51-yard touchdown.
And after the game, the wide receiver was evidently furious, as he was captured on video slamming his helmet against a wall after departing the field.
After Valdes-Scantling's drop on second down, the Chiefs failed to move the chains on the next two plays and the Eagles were able to kneel out the clock at Arrowhead Stadium.
Valdes-Scantling finished the game with no catches on three targets.
Marquez Valdes-Scantling failed to secure a would-be 51-yard touchdown in the fourth quarter
And the wide receiver was very upset afterwards as he slammed his helmet onto a wall
However, it wasn't just him who struggled to catch the ball for Kansas City, as the Chiefs finished the game with five drops.
Mahomes took some blame for Valdes-Scantling's drop after the game, saying he could have thrown the ball 'a little bit shorter.'
The Chiefs fell to 7-3 with the loss.
The Eagles, meanwhile, improved to a league-best 9-1 record.
Read Mail Sport's recap of the game here.