Nicolás Otamendi's Argentina career is over, and it ended in about the cruellest way a defender could imagine: as a first-half substitute in a World Cup final his side went on to lose. The 38-year-old confirmed his international retirement in the aftermath of Sunday's defeat to Spain, ONE reported.

Spain won the 2026 final 1-0 at New York/New Jersey Stadium, with Ferran Torres settling a tense, goalless contest deep into extra time in the 106th minute. It was Spain's second World Cup title, after 2010, and it denied Argentina the chance to defend the crown Lionel Messi and company won in Qatar four years earlier.

Otamendi's part in the final was itself dramatic. He was thrown on in the first half to replace the injured Lisandro Martínez and, according to ONE, was involved in a heated flashpoint with Spain's Rodri as tempers frayed in a match that stayed level until the closing minutes of extra time.

Argentina goalkeeper Emiliano Martínez was the closest thing his side had to a hero, making a string of saves — a World Cup final record, by several counts — to keep the score down before Torres finally broke through.

Speaking after the match, Otamendi made clear the final whistle also closed the book on his time in an Argentina shirt. "I'm leaving with my head held high, knowing this team fought until the last second," he said, in comments carried by ONE. "Since I was a child I dreamed of wearing the Argentina national team shirt... I leave in peace of mind, knowing I gave everything. The titles remain in history, but love for these colours lasts forever."

The decision was not entirely a surprise. Otamendi had signalled before the tournament that this World Cup would be his last with the national side, telling reporters at the time that "after the World Cup, a cycle with the national team comes to an end... I'll just be another fan."

He leaves with 130 caps to his name, a run that began in April 2009 when he was first called up by Diego Maradona. Along the way he won the 2022 World Cup and a Copa América with Argentina, cementing himself as one of the most durable defenders of his generation. His departure leaves Messi as the only player from Argentina's 2014 World Cup squad still turning out for the national team.

In this tournament itself, Otamendi's involvement was more understudy than starter — he made seven appearances across Argentina's eight games but started just once, with his role largely that of a senior voice in the squad and, when called upon, emergency cover, as it was for the final.

His playing career, though, goes on. Otamendi had already lined up his next chapter before the World Cup, signing an 18-month deal with boyhood club River Plate after leaving Benfica on a free transfer. The move, in place since late May, sees him return to Argentine domestic football for the first time in 16 years, calling it a lifelong dream after growing up supporting the Buenos Aires club.

For a defender who built his reputation over spells in Portugal, Spain and England before captaining Benfica, going home to River Plate now carries a different kind of finality — the last international chapter closed on the biggest stage of all, with the club chapter of retirement still very much to be written.