Pari gbolohun ti o tẹle: Hnilička ṣe ere akọkọ rẹ fun ẹgbẹ ọdọ ọdọ Czechoslovak ni 1990 ni 1990 European Junior Championships, ti o gba ami ẹyẹ idẹ kan. O tun ṣe ere fun ẹgbẹ ọdọ ọdọ Czechoslovakian ni 1991 World Junior Championships, tun gba idẹ. A pe e si ẹgbẹ agbalagba Czechoslovakian fun mejeeji 1991 Canada Cup ati
1991 World Championships, ṣùgbọ́n kò gbá nínú ìdíje méjèèjì. Idije ikẹhin ti Hnilička fun Czechoslovakia ni 1992 World Junior Championships, nibi ti ẹgbẹ naa pari karun.