Former England international Geoff Thomas has been diagnosed with leukaemia.
Thomas (left) captained Crystal Palace in the 1990 FA Cup final
Thomas won nine England caps under Graham Taylor in the 1990s.
He told the Wolverhampton Express & Star newspaper: "I have been diagnosed with chronic myeloid leukaemia and have been receiving treatment over the last three weeks which has improved my blood count.
"All of this has been a huge shock to me and my family. That is why everyone's support is so special."
The much-travelled midfielder started his career at non-league Littleborough and played at Rochdale and Crewe before joining Crystal Palace in 1987.
GEOFF THOMAS FACTFILE
Born: 5 August 1964
Height: 5 ft 10 in
England caps: 9
Club appearances: 462 (66 goals)
He enjoyed his greatest success during his six-year spell with the London club and was part of the Palace side which reached the FA Cup final in 1990.
After leaving the Eagles he joined Wolves but made only 53 appearances in an injury-hit four years in the Midlands before moving on to Nottingham Forest, Barnsley and Notts County, before finishing his career in 2002 back at Crewe.
Wolves spokesman John Hendley said: "Geoff was very popular at Molineux, a model professional who was very unlucky with injuries in his time with Wolves.
"Everybody at the club is sad to hear this news and we all wish him well on the road to recovery."