Muamba, the Bolton Wanderers midfielder, fell to the ground suddenly - 41 minutes into the game against Tottenham Hotspur, at White Hart Lane, which was on live television.
No other players were near him at the time.
The match was abandoned as both teams’ doctors spent ten minutes treating him on the pitch in front of around 35,000 fans.
Muamba, 23, was taken to a north London hospital, where a spokesman said he is now in a stable condition.
Reporters at the game said he was not breathing as he was stretchered off the pitch and into an ambulance.
Ian Dennis, of BBC 5Live, said spectators could see that a defibrillator was being used on the footballer.
He said: “You had a situation which was very eerie. Obviously everybody could see that Fabrice Muamba was fighting for his life out on the pitch. Supporters of both sides were chanting his name.
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Sun Mar 18, 2012 7:55 am