Nicknamed 'Sizzle', Grlj captained both Vic Metro and Camberwell Grammar before Richmond drafted the Canterbury junior from the Oakleigh Chargers. The 182cm runner averaged 20.3 disposals for the Chargers and impressed off half-back in 2 late-season VFL appearances for the Tigers. Contracted until 2028, he has played 21 AFL games and kicked 2 goals.