The arrest of the two Serbs -- General Djordje Djukic and Colonel Aleksa Krsmanovic -- raised a key issue: how to pursue war criminals while at the same time maintaining an environment in which all Bosnians can move around freely.

CNN: Bosnian Serb war crime suspects turned over

Aside from his celebrity status -- which he enjoys -- and a legion of fans who give him "a lot of energy, positive vibrations and love, " Djokovic plays mentor to his two brothers, 21-year-old Marko and Djordje who turns 18 in July.

CNN: Visualizing greatness: How Novak Djokovic rose to the top

Djordje Djukic and Col.

CNN: Bosnian Serb-NATO rift threatens accord