A fox is outwitted by a man who wants to be a girl. A sardine's head is a sign of faith. Two strong men compete all the time.
Even if it was a sardine head, 
my faith doesn't change.
Aunque sea por una cabeza de sardina,
Aunque sea por una cabeza de sardina,
Mesmo se fosse uma cabeça
de sardinha, minha fé não mudaria.