Former world darts champion John Thomas Wilson has died at the age of 62.
Wilson, who won world titles in 1982 and 1989, had recently been suffering with a lung disorder and died at home in Kirkcaldy, Fife.
The Scotsman was rarely seen in public having retired from the sport in 1996.
A statement on the official Professional Darts Corporation (PDC) Twitter page read: 'We are very saddened to hear of the death of former World Champion Jocky Wilson. Simply devastated. #RIPJocky'
Wilson turned professional in 1979 and enjoyed a stellar career through to his retirement in 1996.
He reached at least the quarter-finals of every World Championship between 1979 and 1991 and was a four-time British champion between 1981 and 1988 and a three-time Scottish Masters champion.
Wilson's career saw him challenge Englishman Eric Bristow and John Lowe for the sport's major honours before his retirement.
His first victory in the World Championship came in 1982 when he beat Lowe 5-3 in the final.
Seven years later, he beat his other great rival Bristow 6-4, in a match where the 'Crafty Cockney' had recovered from 5-0 down to find himself at 5-4 and 2-2 in the tenth set. Fellow stars from the world of darts paid tribute to Wilson.
He was a founding member of the Professional Darts Corporation, established in 1993.
Two time World Championship runner-up Bobby George wrote on his Twitter page: 'Farewell John Thomas (Jocky) Wilson. We had some great times together will never forget you and your toothless grin! Great £darts #legend'
Current PDC star Wayne Mardle Tweeted: 'Jocky Wilson the darting legend has passed away. What a character, I loved watching him play'
Wilson was Scotland's first darts world champion but in 1996 he withdrew into a council flat aged 45 and admitted: 'I'm all washed up and finished with darts.'
Within two years, he was declared bankrupt, and was forced to survived on disability allowance, living as a recluse in a one-bedroom flat back on the council estate where he grew up.
In 1996 Wilson said: 'I've been let down once or twice in my life, but I don't want anyone feeling sorry for me. There's only one person to blame for the situation I'm in, and that's me.'
In an interview with the Observer in 2007, former close friend Jimmy Skirving said: 'You could always rely on him but I can assure you Jocky was taken advantage of. Once he won a holiday and some suitcases. He got home with neither - he sold the holiday for 50 quid and the cases for a tenner.'
Wilson was married to Argentinian-born Malvina, and had three children, a daughter Anne Marie, and two sons John and William.