Former England and Leeds defender Norman Hunter is in hospital with the coronavirus.
The 76-year-old, who made 28 appearances for the Three Lions and was part of the 1966 World Cup-winning squad, is having treatment.
Leeds United confirmed the news in a statement ending with the words: "Keep battling Norman, we are all with you."
Hunter did not play in England's triumphant World Cup campaign as he could not break the partnership of Jack Charlton and Bobby Moore.
He made 540 appearances for Leeds and won two First Division titles, the FA Cup, League Cup and two Inter-Cities Fairs Cups.
He also played for Bristol City and Barnsley, managing the Tykes after he retired as well as Rotherham.