This is the granddaddy of all gruesome football injuries and the one that is always referenced when a serious injury occurs.
Two minutes into the Premier League encounter between Coventry and Manchester United, David Busst charged into the United box to meet a corner.
Instead of meeting the ball, he found himself caught between Brian McClair and Denis Irwin converging from both sides.
His right leg was broken and bent almost 90 degrees out of position by the contact.
As he lay in agony, bone was clearly visible through his sock and blood was pouring out of the wound.
Such was the damage caused that it took the groundsmen 12 minutes to clear the blood from the goal-mouth.
Peter Schmeichel, who saw and heard the incident from close quarters, says he suffered PTSD from the incident and was one of several United players who received counselling.
Busst never recovered, and after 22 operations, he was forced to retire from the game.