http://www.bbc.co.uk/sport/0/football/17419654Fabrice Muamba remains in critical condition in intensive care
Bolton's Fabrice Muamba is critically ill and will remain in intensive care until at least Monday morning.
The midfielder, 23, was taken to London Chest Hospital's heart attack centre after suffering a cardiac arrest during Saturday's FA Cup tie at Tottenham.
A joint statement from the club and hospital on Sunday at 1100 GMT said: "Fabrice Muamba remains in a critical condition in intensive care.
"As is normal, he remains anaesthetised and will be for at least 24 hours."
The statement added: "Fabrice received prolonged resuscitation at the ground and on route to The London Chest Hospital, where his heart eventually started working. His condition continues to be closely monitored by the cardiac specialists."
Bolton manager Owen Coyle said: "Fabrice's family have asked me to pass on their thanks for the many, many kind messages of support from not only Bolton fans but also fans from clubs across the country and abroad.
"All our thoughts and prayers are for Fabrice and his family at this time. The family would also like to thank the media for respecting their privacy at this time."
Coyle had earlier stated: "It's very serious. There's no getting away from that. God willing, he makes it through."
Bolton's Premier League game at Aston Villa on Tuesday night has been postponed.
Medics spent six minutes trying to resuscitate the former England under-21 international on the White Hart Lane pitch after he fell to the ground with no other players around him.
n a statement released on Sunday Spurs chairman Daniel Levy said: "Our thoughts are with Fabrice's family and Bolton Wanderers, and we are all willing him to pull through. Events such as this put everything into perspective.
"We are immensely proud and grateful to the medical teams at both clubs, their response was immediate and professional. Our thanks also to both sets of fans for their support and behaviour.
"Too often we read the negatives about football and yet last night, at a time of intense emergency and uncertainty, we saw the true humanity and empathy of the footballing family."
Manager Harry Redknapp said: "All our thoughts are with Fabrice, his family, Owen Coyle and the club. It was the right decision to abandon the game - everybody was in a state of shock and it wouldn't have been right to carry on.
"Football is the last thing on anyone's mind when an awful situation such as this happens. All we are thinking about now is Fabrice and his family."
Members of Muamba's family and his fiancee attended the hospital on Saturday night.
Medical staff gave mouth-to-mouth resuscitation to Muamba, who was born in Zaire (now Democratic Republic of Congo) but moved to England aged 11, and tried to revive him with a defibrillator.
In total, six medics were treating the player, who joined Wanderers from Birmingham in 2008 and has made 148 appearances for the club.
Both sets of supporters chanted Muamba's name as he was taken off the pitch on a stretcher. ESPN, who were broadcasting the match, reported that he was not breathing as he was taken into the tunnel.
Referee Howard Webb called the visibly shaken players off the field after consulting with Coyle and Redknapp.
After Muamba had been taken to hospital, the match was abandoned.
The former Arsenal midfielder was accompanied in the ambulance by Coyle and club captain Kevin Davies.
Football Focus presenter Dan Walker had an exchange of text messages with Davies on Saturday evening.
"Encouragingly, he [Davies] said Fabrice is showing real fight which is the best possible news," Walker said.
"Kevin says he is not giving up and he's digging in and showing a bit of battle.
"The fact they got him breathing again makes you marvel at the work these paramedics, doctors and nurses do."
BBC Radio 5 live's chief football reporter Ian Dennis, who was covering the game at White Hart Lane, witnessed medics rushing to aid Muamba.
"When the medical staff arrived his face was on the turf," he said.
"You could see them using a defibrillator and he was [electronically] charged on at least two occasions. Everyone could see Fabrice Muamba was fighting for his life.
"If he does pull through it will be down to the quick actions of the medics."