Sir Alex Ferguson is fighting for his life after being rushed to hospital for a brain haemorrhage this weekend.
The former Manchester United boss, 76, was reportedly complaining about his health as recently as Thursday.
An ambulance was called to his home in Cheshire at about 9am and took him to Macclesfield district hospital, but he was transferred, with a police escort, to be treated at the Salford Royal.
Sir Alex's former club released a statement saying: "Sir Alex Ferguson has undergone emergency surgery today for a brain haemorrhage.
"The procedure has gone very well but he needs a period of intensive care to optimise his recovery.