Cika jumla mai zuwa:
A kakar wasa ta 2016 ya kasance memba na kungiyar Sweden ta U19. Ya zira kwallaye na farko a wasan sada zumunta da Slovakia U19 a watan Satumbar 2015. Wasan ya ƙare 2-2 tare da Jajic yana buɗe ƙididdigar ƙididdiga. Jajić ya jagoranci kasarsa a lokacin gasar cin kofin Turai ta 'yan kasa da shekaru 19 a shekarar 2017, inda Sweden ta gama karshe a rukuninta bayan rashin nasara biyu a wasannin da suka yi da Jamhuriyar Czech da Georgia, da kuma ban mamaki 2<unk>2 wasa da Portugal.