It was a moment of absolute madness that cost Tottenham their place in the UEFA Europa League and ended a decent shot at silverware this season.
Dele Alli's X-rated lunge on Gent's Brecht Dejaegere caused everyone inside Wembley - and those watching on television - to wince. It could easily have snapped the Belgian's shin in two.
Rightly, Alli was shown a straight red card by referee Jorge Sousa and Tottenham's hopes of salvaging the tie never fully recovered.
But the England playmaker is certainly not the first to leave an opponent crumpled on the turf in agony.