FIFA emerges as the $9 billion winner as the biggest, brashest World Cup ever draws to a close

The biggest, brashest World Cup on record drew to a close Sunday, as Spain defeated Argentina 1-0 in extra time to claim international football's biggest prize.

Barcelona forward Ferran Torres scored the only goal of what was ultimately a disappointing final, securing Spain's second World Cup title as Argentina were reduced to 10 men after Enzo Fernández received a second yellow card for a foul on Spanish defender Pau Cubarsi.

Madonna, Justin Bieber, BTS and Shakira were among those who performed at the World Cup's first ever half-time show, which stretched the break out to more than 27 minutes, drawing criticism from commentators and fans.

Behind the scenes, though, FIFA was always certain to emerge as the financial victor of the tournament. World soccer's governing body presided over the most lucrative sporting event in history and is poised to net over $9 billion in revenue for 2026, according to its own estimates.

It's the first time 48 teams have competed on the world stage, up from 32 teams four years ago. That means 104 matches instead of 64, scheduled across a period of six weeks rather than four. Additional games allow more content sold to broadcasters, more tickets issued to fans, and more commercial opportunities for advertisers — and a bigger global audience.

President Gianni Infantino has been the driving force behind FIFA's ruthless commercialization drive. CNBC explores how FIFA is monetizing the World Cup like never before.

North America appeared to be the perfect sandbox to test out the 48-team format, but its administration was not without controversy. The organization drew criticism over the cost of tickets, which ranged from $60 to over $10,000, with a median price of admission topping $900, according to TicketData.

Leading up to the tournament, there were question marks over affordability and whether fan demand would hold up. Despite those concerns, demand was remarkably resilient, according to analytics provider Football Benchmark.

"In the group stage, the utilization rate of stadiums was basically sold out, at 99%," Antonio Di Cianni, director of advisory at Football Benchmark, told CNBC's "Squawk Box Europe" on Friday. "It showed people are willing to pay those prices."

Encouraged by strong ticket sales, Infantino has already begun floating the idea of further expansion to 64 teams in 2030.

"These are all issues that we will be examining after the World Cup," he told Swiss broadcaster Blue Sport on July 10.

If enforced, a 64-team World Cup would see almost one-third of all eligible countries attending the tournament and would boost the inclusivity of the sport, according to Kieran Maguire, associate professor in football finance at the University of Liverpool.

"This is the opportunity for the World Cup to become the Olympics of football in the sense that it becomes open to far more nations," he told CNBC over the phone.

"While the medals might be concentrated in the hands of the few, you've got other people who can now say that they have participated."

President Donald Trump has been heavily involved in the tournament, which the U.S. co-hosting with Mexico and Canada.

He has enjoyed a close relationship with Infantino's FIFA, which awarded Trump its inaugural peace prize last year, after the president ferociously pursued the Nobel Peace Prize and did not win it.

Trump's 2025 financial disclosure, which became public last week, revealed that Infantino gave Trump 10 tickets, valued at $15,000, to last July's FIFA Club World Cup final at MetLife Stadium in New Jersey.