▁descent . ▁His ▁parents , ▁Admir ▁and ▁Sab ina , ▁em igr ated ▁from ▁Bos nia ▁and ▁Herz egov ina ▁to ▁Australia ▁during ▁the ▁Bos n ian ▁War ▁before ▁O mar ▁was ▁born . ▁He ▁is ▁the ▁el dest ▁child ▁in ▁his ▁family ▁and ▁his ▁brother , ▁Am or , ▁is ▁also ▁an ▁asp iring ▁professional ▁tennis ▁player . ▁Jas ika ▁began ▁playing ▁tennis ▁at ▁the ▁age ▁of ▁six . ▁He ▁attended ▁South ▁Oak le igh ▁College ▁throughout ▁his ▁school ing ▁years . ▁ ▁Junior ▁career ▁ ▁I TF ▁Junior ▁final s ▁( 4 ) ▁ ▁Singles : ▁ 4 ▁( 2 ▁titles , ▁ 2 ▁run ners - up ) ▁ ▁Junior ▁Grand ▁S lam ▁final s ▁ ▁Boys ' ▁Singles ▁ ▁Boys ' ▁Dou bles ▁ ▁Professional ▁tour ▁▁ 2 0 1 4 : ▁Tour ▁Deb ut ▁ ▁After ▁his ▁success ▁at ▁the ▁US ▁Open , ▁Jas ika ▁made ▁his ▁ATP ▁World ▁Tour ▁debut ▁in ▁September , ▁after ▁he ▁was ▁given ▁a ▁wild ▁card ▁into ▁the ▁Malays ian ▁Open . ▁He ▁drew ▁Raj ee v ▁Ram ▁in ▁round ▁one , ▁and ▁won ▁the ▁first ▁set , ▁and ▁was ▁within ▁ 2 ▁points ▁of ▁the ▁match ▁in ▁the ▁second , ▁before ▁losing ▁in ▁three ▁sets . ▁In ▁October , ▁Jas ika ▁made ▁his ▁first ▁final ▁at ▁the ▁Australia ▁F 7 ▁in ▁C air ns . ▁▁ 2 0 1 5 ▁Jas ika ▁comm enced ▁ 2 0 1 5 ▁at ▁the ▁On kap arina ▁Ch allen ger ▁where ▁he ▁drew ▁No .