sentences:  Burnett was due to play at the 2015 World Championship as the 26th seed, but was removed from the field the day before the first round draw was made due to personal reasons.In January 2015, it was announced that Burnett did not renew his PDC Tour Card for the 2015 season.In October 2015, it was confirmed by UK Anti-Doping that Burnett had tested positive for cocaine at the Grand Slam of Darts Qualifier in November 2014.