<prompt> Kalkal adә ro fuwutәm ruwo - Nikolić dә suro kәrmai lardәbe suro saa 2012 lan bowotәna. Suro kəntawu November saa 2016, Nikolić də Serbian under-20 level lan bikke makkarye buro salakye ro biske makkarye, har kəntawu March saa 2017 lan. Ngawo Boris Radunovićsye cidinzǝ lan, coach Nenad Lalatović ye sha karǝgǝnzǝ ro bowozǝna kǝla 2017 UEFA European Under-21 Championship ye dǝro  <response>: kǝla kǝnǝngabe. 