Seventeen-year-old centre-back Cubarsi was named in Luis de la Fuente's provisional squad for UEFA Euro 2024 but was cut ahead of La Roja's final party being announced.

He is joined by Eric Garcia, who spent last season on loan at Girona, while Fermin Lopez and Alex Baena are included despite being at UEFA Euro 2024 with the senior team.

Head coach Santi Denia was able to select players under the age of 23, with Manchester City's Sergio Gomez, Sporting CP's Abel Ruiz and Real Betis left-back Juan Miranda taking the three older-age spots.

The likes of Yamal, Williams and Pedri were eligible but have not been chosen in what is initially a 22-man squad but must be cut to 18 ahead of the Olympics.

Spain took silver at the delayed Tokyo 2020 Olympic Games three years ago, losing 2-1 in extra-time to Brazil in the gold medal match.

For this year's competition, it has been drawn alongside Uzbekistan, Egypt and Dominican Republic in Group C, facing the former in its first match on 25 July (AEST).

Provisional Spain squad: Arnau Tenas (Paris Saint-Germain), Joan Garcia (Espanyol), Alejandro Iturbe (Atletico Madrid), Marc Pubill (Almeria), Juanlu Sanchez (Sevilla), Eric Garcia (Barcelona), Cristhian Mosquera (Valencia), Pau Cubarsi (Barcelona), Jon Pacheco (Real Sociedad), Juan Miranda (Real Betis), Miguel Gutierrez (Girona), Adrian Bernabe (Parma), Benat Turrientes (Real Sociedad), Alex Baena (Villarreal), Pablo Barrios (Atletico Madrid), Aimar Oroz (Osasuna), Sergio Gomez (Manchester City), Fermin Lopez (Barcelona), Diego Lopez (Valencia), Sergio Camello (Rayo Vallecano), Samu Omorodion (Atletico Madrid), Abel Ruiz (Braga).