Hercules coach Esteban Vigo is still basking in their 2-0 win at Barcelona.
And Vigo insists he was always confident of the shock result.
He said: "I warned during the week that we would win 2-0. I meant it. I know my management and the potential of my staff. I made them believe in themselves and, therefore, predicted the score beforehand.
"I will not give many clues because they are still the team of my heart and I do not want to tell other competitors how to defeat them. But it is clear that there is a recipe to defeat Barcelona, and thanks to a perfect game, my players we able to apply it in the field.
"I told them not to make any mistakes during the week, and they managed this during the 90 minutes."