Celtic legend Joe McBride has lost his battle with illness following a stroke at the age of 74.
The Scottish Premier League champions confirmed the death of their former striker, who was part of the Lisbon Lions squad that rode to victory in the 1966-67 season, this morning.
Chief executive Peter Lawwell told the club's official website: "The passing of Joe McBride is tragic news. Joe was a very fine man, an absolute gentleman and someone who gave tremendous service to the club over a number of years.
"It was a privilege to know Joe and it was fantastic that someone who gave so much to Celtic was still involved with the club in a number of ways - he will truly be sadly missed by everyone at Celtic. The thoughts of everyone at the club are very much with Joe's family at this very difficult time."
Hoops manager Neil Lennon added: "The loss of Joe is terrible news. It was a pleasure to be in Joe's company and on a personal level, Joe was someone who was always very supportive to myself.
"I know Joe Jnr well too and on behalf of the whole management and backroom team, and the players, we offer our sincere condolences to Joe's family, we know this will be a very difficult time for them all."
McBride accumulated two league titles and two league cups during his playing career with Celtic.