Mezue ahịrịokwu na-esonụ: Ná mmalite afọ 2000, Siscovich sonyere n'egwuregwu ndị na-akwado maka Sydney 2000, na-enyere Croatia aka iru eru maka Egwuregwu Olympic nke Summer. O soro Croatia nọrọ n'ọkwa nke asaa n'asọmpi
2000 asọmpi volleyball ụmụnwaanyị n'egwuregwu Olimpik. Siscovich sokwa soro Croatia gbaa bọọlụ na 2001 European Championship na Bulgaria.