McQueen, 68, spent nearly all of his distinguished enjoying profession with Leeds United and Manchester United.
The 6’3″ centre-half gained the First Division with Leeds in 1974 earlier than shifting to Previous Trafford 4 years later for £500,000, lifting the FA Cup with the Pink Devils in 1983.
McQueen – who made 30 appearances for Scotland – went on to handle Airdrie and coach at St Mirren and Middlesbrough, whereas he additionally labored as a pundit for Sky Sports activities.
His household mentioned he was identified with vascular dementia – which is brought on by lowered blood circulate to the mind – in January.
Their assertion reads: “As a household we felt it was essential to let folks know, significantly if elevating consciousness may also help others in related conditions.
“While as a household we have discovered it onerous to return to phrases with the modifications in dad, he has no regrets about his profession and has lived life to the total.”
McQueen’s former Leeds teammate Jack Charlton died with dementia final yr, whereas his brother Sir Bobby has additionally been identified with the illness.
McQueen needs to alert at present’s footballers of the danger of dementia after his personal analysis.
The household’s assertion provides: “He needs different footballers of at present’s era to know there could also be dangers with persistent heading of the ball.
“Dad scored some essential targets in his profession and memorable headers however used to remain again in coaching, heading the ball to the goalkeeper for apply time and again.
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“He does marvel if this has been a consider his dementia as his signs appeared in his mid-60s.”
The Soccer Affiliation is at the moment investigating the hyperlink between heading the ball and dementia, whereas England boss Gareth Southgate is participating in a examine by The London Faculty of Hygiene and Tropical Drugs.
“Our involvement is completely important if we’re to have a higher understanding of this situation,” mentioned Southgate final month.
“Having turned 50 final yr, I’m now eligible to participate within the HEADING examine, which may present essential and priceless perception to assist individuals who play the sport now and sooner or later.”
It comes after England 1966 hero Nobby Stiles additionally handed away final yr having suffered with dementia.
Final November, The Skilled Footballers’ Affiliation launched its personal activity pressure to analyze the problem of mind damage illnesses in soccer.
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