Whakakihia te rerenga e whai ake nei: Kua karangahia a Nikolić ki nga whiringa kapa motu mai i te tau 2012. I te Whiringa-a-rangi 2016, ka tiimata a Nikolić ki te takaro me te taumata o raro i te 20 o Serbia hei kaitiaki tuatahi, tae noa ki te Poutu-te-rangi 2017. I muri i te whara o Boris Radunović, ka tono a Nenad Lalatović ki a ia ki te kapa mo te
2017 UEFA Pākehā Under-21 Championship.