Lionel Messi's unexpected photos inside the Spotify Camp Nou stirred deep nostalgia among Barcelona fans, but just hours later, details began to surface about how the Argentine star managed to step onto the pitch without the club's prior knowledge.

His emotional message hinted that Messi might be paving the way for a future tribute. Meanwhile, FC Barcelona's response was clear: their greatest icon is always welcome-even if he didn't ask for permission to enter.

Mystery solved: Who let Messi into Camp Nou

According to Spanish media, Lionel Messi entered the Camp Nou around midnight, and recent reports have revealed who opened the doors for him. Sources close to the player denied any coordination with the Barça board, sparking countless theories about how the visit took place.

This was Messi's first return to the stadium in more than four years, following his emotional and controversial exit. As reported by Diario AS, entry was facilitated by Limak-the company overseeing the stadium's renovation project.

It's no secret that relations between Messi and Barcelona's management remain strained since his departure, which explains why this nostalgic return wasn't arranged through the club's leadership.

"Last night I returned to a place I miss with all my soul. A place where I was immensely happy, where you made me feel a thousand times like the happiest person in the world. I hope one day I can come back, and not just to say goodbye as a player, which I was never able to do...," wrote the Argentine legend on Instagram.

Shortly after, Messi rejoined the Argentina national team ahead of their friendly against Angola, putting nostalgia aside to focus on his next challenge.