Translate nested model errors


In rails 4, how do you translate model and attributes names for models
with accepts_nested_attributes_for? Everything works fine except for the
error messages of the nested model.

Here's what I have so far (without my attempt to translate the nested

    <<: *errors
    player: Giocatore
    score: Punteggio
      some_field: Blah...
      points: Punti

When a player is created, I have a nested form that allows the creation
of an initial score, therefore the Player model has:
accepts_nested_attributes_for :scores