He spent the vast majority of his professional career in Spain, amassing La Liga totals of 310 matches and 33 goals during 11 seasons (13 in the country overall), playing for Zaragoza and Celta.

[1] In January 1996, López moved to Spain with Real Zaragoza for a club record 420 million pesetas,[1] making his La Liga debut on the 7th in a 1–1 home draw against Rayo Vallecano.

[2] He scored five goals in 32 matches in his third full season, helping to the ninth position in the table; during most of his stint in Aragon, he partnered countryman Kily González.

He netted twice in five appearances in the 2000–01 edition of the Copa del Rey, helping the side to the final against his former club (1–3 loss in Seville), then contributed with 33 games (29 starts, 2.232 minutes of action) in the 2002–03 campaign as the Galicians finished fourth and qualified for the UEFA Champions League for the first time in their history.

At the end of 2006–07, after having suffered his second relegation with Celta and having already renewed his contract twice by reducing his wages, 34-year-old López decided to leave the club, amassing official totals of 292 matches and 29 goals.