He made 74 La Liga appearances for Sevilla, Racing de Santander, Córdoba and Rayo Vallecano, and also had brief spells in Serie A with Bologna and the Premier League with Aston Villa.

[3] A product of Sevilla FC's youth system, he made his first-team debut on 14 December 2005 in the group stage of the UEFA Cup, playing the full 90 minutes of a 1–1 draw at Bolton Wanderers;[4] this was his only appearance of their victorious campaign.

[10] After appearing sparingly during his stint, with the Cantabrians narrowly avoiding relegation, he was released by Sevilla and joined Calcio Padova in Italy.

[12] Having been rarely played, he was loaned to Hellas Verona FC and Córdoba CF,[13] signing a two-year permanent contract with the latter on 27 April 2015, with the deal being made effective in July.

[14] During his spell with the Stadio Renato Dall'Ara-based side, Crespo made his debut in Serie A on 21 December 2011, playing the entire 0–2 home loss against AS Roma.