Kammala jumla mai zuwa: An kira Nikolić a cikin zaɓaɓɓun ƙungiyar ƙasa tun daga 2012. A watan Nuwambar 2016, Nikolić ya fara wasa tare da Serbia a karkashin matakin 20 a matsayin mai tsaron gida na farko, har zuwa Maris 2017. Bayan raunin Boris Radunović, kocin Nenad Lalatović ya gayyace shi zuwa ga tawagar don
2017 Gasar Turai ta UEFA ta Under-21.