Born in Sligo on 31 July 1922, Fallon played for Celtic between 1950 and 1958, making 254 appearances for the club and scoring 14 goals. .
As assistant manager to the legendary Jock Stein between 1965 and 1978, he was instrumental in helping Celtic secure nine league championships in a row and the European Cup in 1967.
Fallon also brought names including Tommy Gemmell, Davie Hay, Danny McGrain, Kenny Dalglish, Lou Macari and Pat Bonner to the club.
In a letter to Celtic chief executive Peter Lawwell, FIFA President Joseph S. Blatter has expressed his sympathy over the loss of the likeable Fallon.
He wrote: "In addition to a successful career as a player for Celtic, Mr Fallon will also be remembered for his great technical knowledge as assistant manager of Celtic during the Jock Stein era, fulfilling a role that is of such vital importance to the game, namely identifying and nurturing young talent.
"Youth development work such as that carried out by Mr Fallon to such good effect continues to be important to this day, and he will have been pleased to note the emergence of several young talents in recent years, who have most certainly played their part in Celtic’s recent success, most notably in the Champions League.”
“On behalf of the members of the international football family, I should be extremely grateful if you could extend our deepest condolences to Mr Fallon’s family, friends and loved ones.”