Manchester United have thanked the football world for its support as Sir Alex Ferguson remains in hospital after suffering a brain haemorrhage.
The 76-year-old, one of the most successful football managers of all time, had surgery on Saturday and is in intensive care.
Arsenal manager Arsene Wenger was among the latest to send his best wishes to his old rival - and one of the game's greats - Sir Alex.
The post said: "Manchester United would like to thank the wider football world for the messages of support following the news that Sir Alex Ferguson underwent emergency surgery on Saturday evening."
Meanwhile, Wenger, who was presented with a memento to mark his impending departure from Arsenal by Sir Alex last weekend, said the Scot is "a strong man and an optimistic man".
Speaking on the pitch after his final home match in charge of the Gunners, he said: "I was with him on the pitch last week, I went to see him in the box after the game on Sunday. One week later, he looked in perfect shape.
"He told me he's doing a lot of exercise, he looked very happy, but that kind of accident can happen.
"We wish him very well and that he recovers very, very quickly. He's a strong man and an optimistic man. I got calls last night from Manchester and nobody knew exactly what it is."
When it emerged Sir Alex was in hospital, football fans - including names from the worlds of sport, politics and television - set allegiances aside to unite in sending their best wishes to one the game's greats.