Viktor ##ia returns to the professional tour after serving a one - year medical suspension . Troicki did n't take a test but initially refused to take a drug test in January 2013 . Formerly the No . 12 in the world , Troicki 's ranking has fallen to 842nd . He went back to school during his time away , studying sports management .
Viktor Troicki returns to the tennis tour after serving a one-year doping suspension . Troicki did n't fail a test but initially refused to take a blood test in April 2013 . Formerly the No . 12 in the world , Troicki 's ranking has fallen to 842nd . He went back to school during his time away , studying sports management .