 The following season, he played on loan with fellow league club Racing de Santander.As opportunities were scarce at Atlético, Arizmendi was signed by Deportivo de La Coruña for €2 million, on 3 January 2006.The "Colchoneros" bought him back according to a clause in the contract but, on 21 June 2007, he joined Valencia CF on a six-year deal.