The world of football has united to wish Sir Alex Ferguson a speedy recovery after the former Manchester United manager underwent emergency surgery following a brain haemorrhage.

United announced on Saturday night that the procedure had gone β€œvery well” but said the 76-year-old would need a period of intensive care to aid his recovery.

Ferguson retired in May 2013 after winning 38 trophies during 26-and-a-half years at Old Trafford.

Here, Press Association Sport takes a look at some of the social media reaction.

Former United players

Come on Boss πŸ™πŸ™πŸ™ !!!

A post shared by Philip Neville (@philipneville18) on

Current United players

United’s Premier League rivals

Players from other clubs – past and present

The wider sporting world