And after victory over Sevilla, Perez declared the Spanish Liga the best in the world.
"Over time we will assess the merit of our squad. We all need to fix the problem with Barca in our private grief, but we are superior to them regularly. In fields where they draw, we've won firmly," said Perez.
"It is clear that the Spanish Liga is bringing together the best football in the world because here Santos would not even play in the Europa League. Only Madrid is able to stand up to Barcelona in the final show in April like beating them in the Copa over 120 minutes."