Ángel Nieto
Valero played only twice for the first team: given his debut by Fabio Capello against Écija on 25 October 2006, replacing Javi García after 60 minutes of a match for the Copa del Rey, he also featured once in the UEFA Champions League, substituting Miguel Ángel Nieto in a 2–2 away draw with Dynamo Kyiv in the group stage.