Primarily playing as a prop, Andjelic has represented the Serbian national team.
Born in Serbia, Andjelic and his mother Milijana moved to Mount Druitt, New South Wales, Australia when he was a child.
[3] He played his junior rugby league for St Patricks Blacktown, Minchinbury Jets, and Penrith Panthers.
[4] In 2016, Andjelic participated in the Nine Network's rugby league reality TV show, The NRL Rookie, being cut from the competition in week 5.
[5] Andjelic made his international debut for Serbia in their match against the Philippines on 5 February 2016.