Sir Alex Ferguson is one of the greatest managers in Manchester United and footballing history. Reuters
Sir Alex Ferguson, left, spent 27 years in football management at Manchester United. PA
Sir Alex Ferguson during the Carabao Cup semi-final second leg between Manchester City and Manchester United in Manchester in January. EPA
Manchester United manager Sir Alex Ferguson lifts the Premiership trophy with his captain Roy Keane in 2001. PA
Alex Ferguson, right, appointed Steve McClaren as his assistant manager at Manchester United in 1999. Getty
Sir Alex Ferguson during the Champions League final against Chelsea at the Luzhniki Stadium in 2008 in Moscow. Getty
Arsenal manager Arsene Wenger argues withSir Alex Ferguson in London in 2004. Getty
Manchester United manager Sir Alex Ferguson, right, talks with Ole Gunnar Solskjaer during a team training session in 2007. AFP
Sir Alex Ferguson retired as Manchester United manager on May 8, 2013. Reuters
Alex Ferguson was knighted by Queen Elizabeth II in 1999. Reuters
Manchester United manager Sir Alex Ferguson gives instructions to Tom Cleverley at Villa Park in 2012. Getty
Manchester United's Sir Alex Ferguson, left, and former Chelsea manager Jose Mourinho.
Sir Alex Ferguson is one of the greatest managers in football hitory.
Manchester United have not been the same since Sir Alex Ferguson left.
Sir Alex Ferguson, right, retired as Manchester United manager at the age of 71.
Sir Alex Ferguson, left, watches on as Steve Bruce shouts to his Sunderland players during a 0-0 home draw with United in 2017.
Sir Alex Ferguson, pictured on the field with Andrew Cole.
Sir Alex Ferguson, Manchester United manager, left, and Steve Bruce. PA
Sir Alex Ferguson has outlasted, outmanoeuvred and outscored his foes during his 25-year tenure at Manchester United.
Sir Alex Ferguson, the Manchester United manager, received a guard of honour, and the renaming of Old Trafford's North Stand after him as he celebrated 25 years in charge with a 1-0 win against Sunderland. AFP
Sir Alex Ferguson retired at the age of 71.
Sir Alex Ferguson is one of the greatest managers in Manchester United and footballing history. Reuters
Sir Alex Ferguson, left, spent 27 years in football management at Manchester United. PA
Sir Alex Ferguson during the Carabao Cup semi-final second leg between Manchester City and Manchester United in Manchester in January. EPA
Manchester United manager Sir Alex Ferguson lifts the Premiership trophy with his captain Roy Keane in 2001. PA
Alex Ferguson, right, appointed Steve McClaren as his assistant manager at Manchester United in 1999. Getty
Sir Alex Ferguson during the Champions League final against Chelsea at the Luzhniki Stadium in 2008 in Moscow. Getty
Arsenal manager Arsene Wenger argues withSir Alex Ferguson in London in 2004. Getty
Manchester United manager Sir Alex Ferguson, right, talks with Ole Gunnar Solskjaer during a team training session in 2007. AFP
Sir Alex Ferguson retired as Manchester United manager on May 8, 2013. Reuters
Alex Ferguson was knighted by Queen Elizabeth II in 1999. Reuters
Manchester United manager Sir Alex Ferguson gives instructions to Tom Cleverley at Villa Park in 2012. Getty
Manchester United's Sir Alex Ferguson, left, and former Chelsea manager Jose Mourinho.
Sir Alex Ferguson is one of the greatest managers in football hitory.
Manchester United have not been the same since Sir Alex Ferguson left.
Sir Alex Ferguson, right, retired as Manchester United manager at the age of 71.
Sir Alex Ferguson, left, watches on as Steve Bruce shouts to his Sunderland players during a 0-0 home draw with United in 2017.
Sir Alex Ferguson, pictured on the field with Andrew Cole.
Sir Alex Ferguson, Manchester United manager, left, and Steve Bruce. PA
Sir Alex Ferguson has outlasted, outmanoeuvred and outscored his foes during his 25-year tenure at Manchester United.
Sir Alex Ferguson, the Manchester United manager, received a guard of honour, and the renaming of Old Trafford's North Stand after him as he celebrated 25 years in charge with a 1-0 win against Sunderland. AFP