Former Celtic and Scotland captain Danny McGrain has been diagnosed with Alzheimer’s disease.

Celtic stated that McGrain’s wife, Laraine, and their daughters, Vicki, Dawn and Carly, decided to go public with the diagnosis “so that Danny can continue to receive the love and support of the Celtic Family, just as he has given so freely and humbly to others throughout his life”.

Laraine added in a statement released by the club: “Danny received this diagnosis some time ago, and as time has moved on, we felt it was right to be open and clear.

“Danny has always loved helping supporters – whether through hospital visits, assisting fans with charity events, or sending messages of support.

“As time has gone on, that has become more difficult for Danny, so we wanted to explain his situation with honesty, and with the care and respect the Celtic Family has always shown us.”

Celtic stated that McGrain, 76, remained in “good spirits, enjoying time with his loved ones, following the game, and staying close to the club he holds so dear”.

The full-back played 663 games for Celtic from 1970 to 1987, winning seven league titles, five Scottish Cups and two League Cups.

Celtic chief executive Michael Nicholson said: “When we talk about Celtic legends, Danny will always be right at the top of that list. He is a true great of the game, and we are deeply grateful for everything he has given to Celtic and to the people around him.

“Danny has meant so much to so many supporters, and at this time we fully respect the openness shown by Danny’s family. The whole club will ensure Danny and his family receive our full support, care and kindness throughout what lies ahead.”

McGrain earned 62 caps for Scotland and played in the 1974 and 1982 World Cups – he was unbeaten in five matches in the tournament. The Glaswegian missed the 1978 edition through injury.

He helped Hamilton secure promotion to the top flight after leaving Celtic and later managed Arbroath, before spending the bulk of the last 30 years working with Celtic in a number of coaching roles and off-field positions.