Mikel Arteta, Xabi Alonso and Andoni Iraola share an extraordinary connection beyond their current Premier League positions. The trio lined up together at eight years old for Antiguoko Kirol Elkartea, a modest grassroots club in San Sebastian's Basque Country, playing on gravel pitches with makeshift facilities.

With just seven months separating Alonso and Iraola, they competed alongside future Arsenal, Chelsea and Liverpool managers before the club's transformation into a semi-professional outfit. Antiguoko produced over 40 top-flight players including legendary striker Aritz Aduriz, and famously defeated a Real Madrid side featuring Iker Casillas 4-2 in 1999.

The Basque region's influence extends throughout English football, with Aston Villa's Unai Emery and sporting director Roberto Olabe also hailing from nearby. Arteta described himself as a leader and match-winner in those early days, while Alonso was the quiet playmaker son of Spain international Periko Alonso.

Iraola, initially considered too shy to reach the top, worried about lacking the level when moving to Athletic Bilbao. All three completed their UEFA Pro Licenses at Antiguoko and maintain connections with their childhood club, demonstrating how grassroots foundations can shape elite coaching careers.

Antiguoko's success stems from the region's strong sporting culture and competitive character, according to vice-president Roberto Montiel. The club continues developing talent despite increased competition from professional academies recruiting younger players earlier.