 Kọ itẹsiwaju fun paragirafi yii - Kalteva ni a ṣe akojọ 107th lapapọ ni 2002 NHL Entry Draft nipasẹ Colorado Avalanche. Kalteva darapọ mọ Jokerit bi ọmọ ọdun 16 kan ti o jẹ ọdọ ati pe o dun ni Junior A SM-liiga ni 2000  01 ti o ni aaye kan ni Pohjola First All-Star Team. Kalteva gba akiyesi Avalanche lẹhin ti o yan si ẹgbẹ Junior Finnish fun Awọn Ajumọṣe Agbaye U18 : ní ọdún 2002. Kalteva tun ti wa ni orukọ ni Finnish World Junior Championships ni ọdun 2003 ati 2004, o gba ami-ẹyẹ idẹ ni igba kọọkan. 