The image of Lamine Yamal, in the colours of La Roja, falling to his knees in prayer as Argentine and Spanish players shoved each other in the background, quickly spread on social media. Lamine Yamal Nasraoui, 19, became the youngest player since Pele and Kylian Mbappe to start and win a World Cup final.

In the days since, much of the sporting conversation in Spain has moved beyond the scoreline. Instead, it has settled on a question that has followed Yamal since he broke into the national team: who gets to count as Spanish, and on whose terms?

Yamal, who was born in Rocafonda, a working-class neighbourhood of Mataró, to a Moroccan father and an Equatorial Guinean mother, has spoken in interviews about reciting a dua his grandmother taught him before matches and fasting during Ramadan while training at Camp Nou, Barcelona's stadium.

During this summer's World Cup group stage, after scoring against Saudi Arabia, he performed sujud, a prostration of gratitude commonly observed by Muslim footballers. The gesture prompted widespread discussion on social media, with some fans praising the display, while others criticised it, arguing it had no place during an international match while a player was representing Spain.