 Anttila's first team was his hometown team Lempäälän Kisa of Lempäälä.Anttila scored 38 points in 22 Suomi-sarja regular season games during his debut season.Though playing in the 3rd highest level in Finland, Anttila was drafted by the Chicago Blackhawks in the 2004 NHL Entry Draft while he was playing for LeKi.