Premier League footballer Fabrice Muamba remains in a critical condition in hospital after collapsing during an FA Cup tie.
The 23-year-old "remains anaesthetised" in intensive care at the London Chest Hospital after falling to the ground at White Hart Lane in front of millions of television viewers watching the sixth-round tie between Tottenham Hotspur and his club, Bolton Wanderers.
Club manager Owen Coyle thanked fans for their support, adding: "All our thoughts and prayers are for Fabrice and his family at this time."
A joint statement from the hospital and Bolton Wanderers read: "Fabrice Muamba remains in a critical condition in intensive care in the Heart Attack Centre at the London Chest Hospital. He was admitted to the hospital yesterday evening after collapsing at White Hart Lane, where he sustained a cardiac arrest during the FA Cup quarter final against Tottenham Hotspur.
"Fabrice received prolonged resuscitation at the ground and on route to the London Chest Hospital, where his heart eventually started working.
"As is normal medical practice, Fabrice remains anaesthetised in intensive care and will be for at least 24 hours. His condition continues to be closely monitored by the cardiac specialists at the hospital."
Coyle added: "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."
Fans left flowers, shirts and scarves at Bolton's Reebok Stadium close to the players' entrance and the location of the club's remembrance book.
One message written on a card with a Manchester United emblem on it read: "Our thoughts and prayers are with you. One game, one family." A Bolton flag was signed with the message: "Just get back to full health. Praying for you."
Two Bolton shirts were left at the scene, signed with messages of support.