Santi Castillejo

Born in Valtierra, Castillejo started his football career with local CA Osasuna, being mainly associated with the reserves and scoring 20 Segunda División B goals with them in the 1992–93 season. He made his La Liga debut with the first team on 14 March 1993, appearing as a late substitute in a 1–0 home win against Real Zaragoza, and featured in just ten games in his only full campaign, which ended in relegation; he was also loaned to Deportivo Alavés during his spell, achieving promotion to Segunda División by netting 22 times (play-offs included). Released by the Navarrese in summer 1996, Castillejo resumed his career in the second tier but also in the third, with CD Numancia, CD Castellón, Gimnàstic de Tarragona– he scored 21 goals as the club promoted to division two in 2001, best in Group III, second overall – UB Conquense, CD Leganés and CF Reus Deportiu, retiring in 2008 at the age of 37.

Castillejo started working as a manager immediately after retiring, initially being an assistant with Reus in the Tercera División. He was appointed head coach for 2009–10, leading the team to promotion in his second season. Castillejo agreed on a return to former club Gimnàstic in late May 2013, signing ahead of the 2013–14 campaign. On 4 November, he was relieved of his duties. On 26 June 2014, Castillejo took the reins of UE Llagostera, recently promoted to the second division. He was dismissed on 21 October, after leaving them in the relegation zone. On 22 February 2016, Castillejo was named at the helm of UE Olot in the third tier. On 7 June he was appointed at FC Ascó, and renewed his contract the following 13 May. Castillejo returned to his first club Osasuna on 19 June 2018, as manager of the B team. He led them to promotion to the third division in his first season, and to Primera Federación in 2022. On 28 May 2026, after suffering relegation, Castillejo left as his contract was due to expire.