He lost a close final match at the 2011 French Open Boys ' event , to Bjorn Fratangelo , in three sets .
Thiem reached an ITF Junior world ranking of No. 2 ( combined singles and doubles ) .
Thiem lost a close final match at the 2011 French Open Boys ' event , to Bjorn Fratangelo , in three sets .
Thiem reached an ITF Junior world ranking of No. 2 ( combined singles and doubles ) .