Finland's Robin Hull has retired from the professional circuit at the age of 33 because of health problems.
Hull, who was based in London for most of his career, was diagnosed in 2003 with a life-threatening virus which affected his heart and lungs.
Although he recovered, his health remained an issue and he slipped down the rankings to number 54.
Last week he was forced to pull out of the World Championship qualifying event in north Wales.
"His health continues to be affected by the travelling necessities and pressure of professional snooker, so he has decided to take an alternative career path," said Lee Doyle, a spokesman for Hull's management company.
The 33-year reached two ranking event quarter-finals during his career and also registered wins over world champions Steve Davis and John Higgins.