The fan, whose face was painted with the Slovenian flag, seemed to be attempting to distract Portugal's captain, Cristiano Ronaldo, by brandishing the jersey of his long-time rival, Messi.
The unusual tactic was likely aimed at getting under Ronaldo's skin, as the two superstars have been engaged in a storied rivalry throughout their careers. While most fans would opt for traditional team regalia, this Slovenian supporter chose a more unorthodox approach to show his team spirit.
The match, which pits Slovenia against Portugal, promises to be an intense encounter, with both teams vying for victory. Ronaldo, leading the Portuguese squad, will undoubtedly be focused on securing a win, but the Slovenian fan's unconventional tactic may just provide an added layer of motivation for the Portuguese captain.
As the teams take to the field, it remains to be seen whether this unusual show of support will have any impact on the game's outcome. One thing is certain, however - this Slovenian fan has already made a lasting impression with his creative and humorous display of team spirit.