Cika wannan jumlar: Teräväinen ya wakilci Finland a matakai daban-daban na matasa, musamman a gasar zakarun duniya na matasa. A gasar 2013, ya ci maki 11, inda ya zama na hudu a gasar cin kofin.
A shekara mai zuwa, an nada shi kyaftin din kungiyar, yana jagorantar Finland har zuwa wasan karshe. A wasan karshe, Finland ta doke Sweden 3<unk>2 a cikin karin lokaci. Teräväinen ya taimaka wa dukkanin manufofin Finland guda uku kuma ya kasance jagora na gaba ɗaya na gasar.