Zizic was an easy player to identify, not just due to his size and mature frame, but mainly because his brother Andrija, who is 17 years older than him, was an important player in Europe in his own right. He played over 100 Euroleague games with the likes of Barcelona, Olympiakos, Panathinaikos and Maccabi Tel Aviv, and participated in many tournaments with the Croatian National Team at both the junior and senior level. Today the Zizic brothers are reunited back in Croatia playing for historic club Cibona Zagreb, where Andrija has played over 200 games dating back to 2003. He primarily comes off the bench now backing up his little brother now, who is dominating the Adriatic League in a way few players his age have since its inception in 2001.