Violence also spread to Brazil, where many Argentine fans had traveled for the tournament. In Rio de Janeiro's Copacabana neighborhood and the resort town of Búzios, Argentine supporters were involved in brawls among themselves and clashed with Brazil's Military Police . Reports described police using batons to beat fans and making multiple arrests across Brazilian cities
. Video footage showed chaos on Copacabana Beach as officers tried to restore order with batons
.
Even in the winning capital, tensions boiled over. Spanish and Argentine supporters clashed in central Madrid after Spain lifted the trophy, with videos showing heated confrontations between rival groups as bystanders attempted to separate them .
The chaos began on the pitch before it reached the streets. What should have been Spain's celebration instead saw a mass brawl erupt at the final whistle .
On July 20, FIFA announced it had opened a disciplinary investigation into Argentina players for their conduct after the final . The world governing body appointed a Disciplinary and Ethics Prosecutor to investigate potential breaches of the FIFA disciplinary code
. Heavy sanctions — including potential multi-match suspensions — loomed for Paredes, Molina, and possibly assistant coach Roberto Ayala, who was also seen involved in the scuffles
.
Amid the turmoil, President Javier Milei announced a national holiday to honor Argentina's runners-up finish, stating the date would be set by the players and coaching staff . The unusual move to celebrate a second-place finish drew mixed reactions. The situation turned embarrassing when it was revealed that Milei had inadvertently posted a pre-scheduled victory tweet, which had to be quickly deleted after the loss
. The blunder went viral, with fans and media mocking the apparent failure to unschedule the post
.