Sevilla coach Julen Lopetegui was delighted with their 1-0 defeat of Atletico Madrid.
Lopetegui says his players proved their quality in victory over the LaLiga leaders.
"I am very happy this Sunday, especially for the players, who have defeated the leaders," said the coach, "and one of the best teams in the world.
"We have played a great game and we have had a prize; other times you do not get this even when doing things very well."
Sevilla managed to win despite Lucas Ocampos failing from the penalty spot in the sixth minute.
"It is not easy to miss a penalty and then not let it affect you," added Lopetegui.