Ku sii wad qodobkan - Nikolić waxaa loo yeeray xulashada xulka qaranka tan iyo 2012. Bishii Nofeembar 2016, Nikolić wuxuu bilaabay inuu la ciyaaro heerka heerka Serbian ee ka hooseeya 20 oo ah goolhaye doorashada koowaad, ilaa Maarso 2017. Kadib dhaawaca Boris Radunović, tababare Nenad Lalatović ayaa ku casuumay kooxda 2017 UEFA European Under-21 Championship
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