Setien hailed his side's resolve in their 3-1 win in the last-16 Champions League second leg against Napoli.
"We wanted to make sure we got through, and we will play other games with this type of spirit," Setien said in a post-match interview with El Chiringuito.
"The team played well and deserved the victory. They caused us problems, but we controlled the game in the first half.
"We had problems after the break, but we reduced them to few chances."