Fabrice Muamba remains in critical condition in intensive care<br /><br />Bolton's Fabrice Muamba is critically ill and will remain in intensive care until at least Monday morning.<br />The midfielder, 23, is at the London Chest Hospital's heart attack centre after suffering a cardiac arrest during Saturday's FA Cup tie at Tottenham.<br />At 2030 GMT on Sunday the hospital said Muamba remained in intensive care and is being kept sedated.<br />Bolton chairman Phil Gartside said: "I ask for everybody to keep Fabrice in their prayers and thoughts."<br />In a statement on the club's website, Gartside added: "The staff at the London Chest Hospital have been nothing short of exceptional and I would like to thank them all at this ongoing critical time.<br />"The support that we had yesterday from Tottenham and our own fans was fantastic - the staff, the fans, the players and the officials at the game - it was unbelievable."<br />Speaking outside the hospital earlier on Sunday, Bolton manager Owen Coyle said: "From our end, and on behalf of the family, we certainly want to say thanks to everybody.<br />"Everybody is praying for Fabrice which is very important and that has been a real source of strength to the family.<br />"We know it's such a difficult time for everybody involved, our thoughts are with Fabrice's family."<br />Coyle had earlier stated: "It's very serious. There's no getting away from that. God willing, he makes it through."<br />Bolton's Premier League game at Aston Villa on Tuesday has been postponed.<br />Medics spent six minutes trying to resuscitate the former England Under-21 international on the pitch after he fell to the ground with no other players around him.<br />The score was 1-1 when the quarter-final was abandoned after 41 minutes.<br />Earlier on Sunday, the hospital said in a statement: "Fabrice received prolonged resuscitation at the ground [White Hart Lane] and en route to the London Chest Hospital, where his heart eventually started working. His condition continues to be closely monitored by the cardiac special