Faatumu le fuaiupu lenei: Janssen taalo mo le taimi muamua mo se Junior filifilia o Royal Dutch Football Association i le 17 Mati 2010 i le faauo afitusi o U-15 au a le atunuu e faasaga i Egelani. I le 2012, sa avea o ia ma kapeteni o le au a le Dutch U-17 i taʻaloga agavaa mo le
2012 UEFA Women's Under-17 Championship ma na taitaia foi le au, o se kapeteni, i le agavaa mo le 2013 UEFA Women's Under-19 Championship. I le 2014, na ia manuia ai ma lana 'au e agavaʻa mo le taʻamilosaga mulimuli o le 2014 UEFA Women's Under-19 Championship i Nouei, lea na manumalo ai Netherlands i le ulutala mo le taimi muamua ma le 1<unk>0 manumalo faasaga i Sepania. Na taalo Janssen i taaloga uma e lima o le taamilosaga.