Here are all the messages from Man United players to Alex Ferguson
If one thing has become clear since yesterday...
It's that the players who played under Alex Ferguson at Manchester United have a respect and love for him that goes well beyond football.
Reports emerged yesterday that the former Man United manager was in intensive care after emergency brain surgery, following a brain haemorrhage.
Ferguson, who is 76, has received thousands of well-wishes and tributes on social media, and the official Manchester United website has gathered all the kind messages from Fergie's former players.
Michael Carrick: Absolutely devastated to hear about Sir Alex being unwell in hospital. All my thoughts and prayers are with him and his family. Be strong Boss xx
Edwin van der Sar: Devastated about the news about Sir Alex and knowing all too well about the situation ourselves. Stay strong and hope together with everyone you recover. Edwin & Annemarie.
Marcus Rashford: Get well soon SAF, wish you a speedy recovery.
Cristiano Ronaldo: My thoughts and prayers are with you, my dear friend. Be strong, Boss!
Scott McTominay: Thoughts & prayers are with you and your family boss. Get well soon.
Rio Ferdinand: Praying for good health boss!
Wayne Rooney: Get well soon Boss. Thoughts with all the family at this sad time.
Chris Smalling: Gutted to hear the news about Sir Alex. Stay strong boss. Thoughts are with you and your family.
Jesse Lingard: Thoughts and prayers, sir alex.
Peter Schmeichel: Please. Be strong. Win this one.
Ashley Young: Gutted to hear the news tonight about Sir Alex. Don’t really know what else to say other than thoughts and prayers with you and your family, Boss.
Ruud van Nistelrooy: Hoping and praying for a full recovery… Keep fighting Boss, you’ve always done.
Romelu Lukaku: Thoughts and prayers are with Sir Alex Ferguson and his family! Stay strong.
Luke Shaw: Sending my love and best wishes to sir Alex.
Javier Hernandez: All my prayers and thoughts as well are with him and his family!! Be strong boss!!!!
Raimond van der Gouw: Absolutely shocked to hear about Sir Alex being so poorly in hospital. All my thoughts and prayers are with him and his family. Be strong Boss. Raimond and Marita.
Robin van Persie: Very sorry to hear about sir Alex Ferguson being in hospital. Thoughts are with him and his family. Stay strong Boss.
Clayton Blackmore: My thoughts and prayers are with Sir Alex and his family. Wishing the boss a speedy recovery!
Mikael Silvestre: Come on Boss ! We love you.
Nani: Get well soon Boss... I’m with you!
Diego Forlan: My thoughts and prayers go to Sir Alex Ferguson and his family on these tough moments.
Paul McGrath: Just heard about Sir Alex, my prayers and thoughts are with him and his family. If anyone can pull through this it will be the man himself.
David Beckham has also shared a photo of himself and Fergie as he signed his first contract with the club.