The incident occurred just 10 minutes into the first half when Brentford forward Kevin Schade controlled a loose ball near the edge of United’s penalty area. De Ligt, attempting to clear the danger, arrived late with a diving header but collided headfirst into Schade’s knee instead of the ball. The impact left the Dutch international with a deep, bleeding wound on his head, causing a lengthy pause in play as medical staff rushed to attend to him.