Slavko Vinčić has finally spoken about the moment that will define his refereeing career — a quiet word with Lionel Messi in the middle of the World Cup final. And true to the discretion he showed on the pitch that day, the Slovenian is not giving up the details.

"I will leave the conversation between us on the grass," Vinčić said in his first extended remarks since the final. "But I can say that Messi behaved sportingly." It is as close as the 46-year-old has come to describing what passed between the two men during a tense, high-stakes afternoon in New Jersey.

The comment carries weight given the occasion. Vinčić took charge of the July 19 final at MetLife Stadium in East Rutherford, where Spain edged Argentina 1-0 in what was widely assumed to be Messi's last World Cup appearance, at 38 years old.

The match itself will be remembered for late drama beyond the scoreline. Argentina were reduced to ten men in stoppage time when Enzo Fernández was shown a second yellow card — his tackle sending Spain's Pau Cubarsí flying — and had to see out the closing minutes a man short as Spain held on for the title.

Vinčić described the assignment itself as overwhelming before it became a source of pride. He becomes the first Slovenian referee to take charge of a men's World Cup final, and he spoke of the responsibility of representing his small country on football's biggest single stage.

On the technology that shaped his performance and so many other games at the tournament, Vinčić was unequivocal: modern refereeing, he said, is no longer conceivable without VAR, given the speed and complexity of the way the game is now played at the highest level.

The final turned out to be Vinčić's last match in the middle. The Slovenian Football Association has confirmed he has hung up his whistle, closing out an international career at its absolute peak. He said the decision to retire had already been made before the tournament began — he simply never imagined his farewell would come in a World Cup final.

For Messi, the episode is another footnote in a tournament defined by fine margins — a final lost by a single goal, a red card that changed its complexion late on, and now, from the man who oversaw it all, a word of praise for how he carried himself in the moment that mattered most.