 During 2007–08, Arizmendi's physical style of play was occasionally put to use at right back due to injuries to habitual Miguel and Marco Caneira.On 23 March 2008, he scored his first Valencia goal in a 3–2 win at Real Madrid, while also helping the "Che" to the campaign's Copa del Rey.On 12 August 2008, Arizmendi was signed by Real Zaragoza for roughly €4 million on a six-year contract.