Saizar continued to compete in the third division the following years, representing Pontevedra CF, Cultural y Deportiva Leonesa[1] and CD Guadalajara.

On 27 August 2011, aged 28, Saizar made his debut as a professional, starting in a 1–1 home draw against UD Las Palmas.

Saizar renewed his contract with the Andalusians on 14 February 2013,[5] and was an ever-present figure in 2013–14 as his team returned to La Liga after a 42-year absence.

[8] On 30 November of the following year, after spending one season as a backup to compatriot Toño at AEK Larnaca FC from the Cypriot First Division, he signed a one-year deal with CD Numancia.

[9] He played only once for the Soria-based club before dropping down a division to join Burgos CF, where he kept a clean sheet for the first nine games of the 2017–18 season before a 1–1 draw at CD Mirandés on 21 October.