Leeds United have confirmed that Peter Lorimer is currently in a hospice battling a long term illness.
The Scot played for the club in two stints, from 1962 and 1979 and then between 1983 and 1985.
He was a key player in the club's golden age, winning two league titles, an FA Cup and a League Cup.
He remains Leeds United's leading goalscorer, with 238 goals across more than 600 appearances.
Leeds United said they will "update fans on Peter's progress in due course".