Former BDO world darts champion Richie Burnett has been banned for 18 months after testing positive for cocaine.
The 48-year-old Welshman, who won his world title at Lakeside in 1995, is now suspended from all sport until May 2, 2016.
UK Anti-Doping (UKAD) announced the ban after Burnett tested positive for the presence of benzoylecgonine, a metabolite of cocaine, during the Professional Darts Corporation (PDC) Grand Slam Qualifier at Robin Parks Sports Centre in Wigan on November 3 last year.
Burnett's ban was reduced to 18 months from two years following an appeal due to "the exceptional circumstances of the case".
UKAD's director of legal Graham Arthur said: "All athletes adhere to the principle of strict liability. No matter what the circumstances, they are solely responsible for any prohibited substance found in their system.
"This can be challenging for athletes, as the onus falls to them to prove how, and why, their sample tested positive, and to show there was no significant fault."
Burnett, who moved into the PDC ranks in 1999, was removed from the field for the World Championship at Alexandra Palace in December for "personal reasons".