Bolton Wanderers midfielder Fabrice Muamba was critically ill in hospital after collapsing on the pitch during the FA Cup quarterfinal at Tottenham Hotspur on Saturday.
The match was abandoned at 1-1 just before halftime after the 23-year-old fell to the turf near the centre circle.
"Bolton Wanderers can confirm that Fabrice Muamba has been admitted to The Heart Attack Centre at The London Chest Hospital where he is in a critically ill condition in intensive care," said a joint statement from Bolton and the hospital.
"No further information will be issued at this stage.
"The club and hospital request that the media and public respect the family's privacy at this time."
No other player was involved in the incident and after a delay of several minutes referee Howard Webb took the teams off the field.
Medics arrived on the pitch quickly and gave Muamba CPR (cardiopulmonary resuscitation), a Reuters eye witness said.
A number of players gathered around Muamba, some crying and holding their heads in their hands.
As he was carried off the pitch on a stretcher there were a few bursts of applause from the crowd at White Hart Lane before they fell silent.
Muamba, born in Democratic Republic of Congo and an England Under-21 international, was taken to hospital.
"On behalf of The FA, I would like to send our thoughts and prayers to Fabrice Muamba and his family this evening," FA chairman David Bernstein said in a statement.
"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.
"We are in contact with Bolton Wanderers over Fabrice's condition and are awaiting updates."
Tottenham also passed on their best wishes.
"Everyone at the club sends their best wishes to Fabrice Muamba and his family," Spurs said on their Twitter feed.
Muamba joined Bolton from Birmingham City in 2008 in a deal worth over £5 million and has made 130 league appearances for the club.
He came through Arsenal's youth academy and made two League Cup appearances for the Gunners in the 2005-06 season.
Source: supersport.com
