vojković joined the hnk hajduk split academy at the age of 6, and advanced through the ranks, playing for the national team in all the categories from u14 upwards. a precocious player, he made his u17 national team debut at the age of 15, becoming a first-team regular there, while, despite being born in the last days of 1996, he played for the '95 generation, helping it the national u17 championship. however, his career was brought to a halt by a string of serious injuries, making him miss every match between november 2013 and february 2015. returning to football in early 2015, he played another two matches for the croatia u19 team and two further matches for the third-tier reserves of hajduk, before yet another injury in march 2015.