Fabrice Muamba's sudden collapse sent shockwaves around White Hart Lane with players, officials and spectators alike stunned by seeing something so shocking and unexpected.
As players tried to come to terms with the incident, spectators were left bemused, confused and concerned, as one Tottenham supporter at the game explained.
Paul Smith said: "I, along with around 30,000 other people have witnessed a great tragedy this evening. Bearing in mind that the lad was given resuscitation on the pitch on the pitch, we fear the worst. It puts everything else in to perspective.
"I was in the north upper stand and the incident was in the other half of the field so I was quite a long way from everyone but everyone saw the urgency of the situation."
The Football Association joined players in wishing well a player who had played for England at all levels up to Under-21. The FA chairman David Bernstein , said: "On behalf of the FA, I would like to send our thoughts and prayers to Fabrice Muamba and his family this evening.
"Fabrice has played 33 times for England Under-21s, captaining Stuart Pearce's side during this time and is a player, and more importantly, a person we care greatly for."
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