The family of former Celtic manager and player Billy McNeill have confirmed he has dementia.
Mr McNeill, who has been described as the club's "greatest ever captain", led the team which won the European Cup in 1967.
His family told a Sunday newspaper he was diagnosed with the illness seven years ago and is now unable to speak.
Celtic chief executive Peter Lawwell said Mr McNeill was facing his situation with "true bravery".
The former Hoops captain enjoyed a glittering career at the Parkhead club, where he became the first Briton to lift the European Cup after a 2-1 win over Inter Milan in Lisbon in 1967.
McNeill, 76, also led Celtic to nine successive league titles and won seven Scottish Cups and six League Cups, before having two spells as manager.
He also managed English clubs Manchester City and Aston Villa in the 1980s.
It was quite noticeable at a recent cup draw in Europe McNeil seemed to slur his words and was not quite his usual self.