Nikola Cacic defeated Danilo Petrovic 7-5 6-4 in the Serbia F9 qualifying round on clay. Nikola Cacic moved ahead in the head-to-head, 2–1.
Cacic N. took it in straight sets.
Nikola Cacic beat Danilo Petrovic 7-5 6-4. Umpiry, "Nikola Cacic vs Danilo Petrovic — Serbia F9 Qualifying Round", https://umpiry.com/match/2011-08-29/cacic-vs-petrovic-serbia-f9-qf?utm_source=cite (as of 29 August 2011).