Cika wannan jumla: A farkon shekara ta 2000, Siscovich ya shiga cikin wasannin neman shiga gasar Sydney 2000, yana taimakawa Croatia ta cancanci shiga gasar Olympics ta bazara. Ta gama na 7 tare da Croatia a
Gasar wasan kwallon raga ta Olympics ta 2000 ta mata. Siscovich ya kuma buga wa Croatia wasa a gasar zakarun Turai ta 2001 a Bulgaria.