ルイス・アラゴネス
Ahead of the 2001–02 campaign, Guerrero joined Atlético Madrid alongside teammate Jesús Muñoz, but he was quickly deemed surplus to requirements by manager Luis Aragonés, moving to Racing de Santander in late August without ever playing a competitive match. He was always first choice during his spell with the Cantabria club, netting an average of 11 goals per season.