Manchester United manager Sir Alex Ferguson paid a warm tribute to former Celtic player and coach Sean Fallon at his funeral on Wednesday.
Fallon died at the age of 90 last week, leaving a legacy which included his time as assistant manager to Jock Stein when the club became the first British team to lift the European Cup in 1967.
Hundreds of mourners attended the funeral service at the Church of Christ the King in Glasgow, including Ferguson, Celtic manager Neil Lennon and a host of current and former players.
Ferguson said: "I think it's very difficult for people who are successful to remain humble, it's a touch of greatness. Sean always had that greatness.
"Through his background, his upbringing, his Irishness, that breeds humility and also loyalty, he would never let you down."
Although Ferguson had built strong ties with Rangers, he formed a life-long friendship with Fallon as he built his career as a coach and a manager.
"Over these years he became a great friend of mine and a great supporter of me," he continued. "He had great observation, which I must say only (his wife) Cathy's got.
"He said he could tell, watching me on the telly, when I'm angry and when I'm happy. I thought I was always angry. What a fantastic man and it's a privilege for me to be here."
Fallon's grandchildren also paid fulsome tributes, with one saying: "Our papa said he realised his dreams. He'd a family he loved, a job he loved. May we all be so blessed."
Fifa president Sepp Blatter praised the work Fallon had done in setting up Celtic's youth system, somethiong he says they are still benefitting from today.
He told Celtic's official website: "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."