The Serbian, who will not be able to play again until July 15 next year. Troicki was given the initial punishment in July by an International Tennis Federation anti-doping tribunal after refusing to give a blood sample during the Monte Carlo Masters in April.
In a statement released through his manager, Troicki said: “I hoped that the most difficult period of my career and of my life would be over, and I really trusted the judges I met in Lausanne.
I had the feeling that they were really looking for the truth and that they had found it during the hearing. Now this decision puts an end to my dreams of being a top player, of reaching the ATP finals and fighting against the best in the world.”