The 2026 FIFA World Cup kicks off in exactly seven days at the Estadio Azteca in Mexico City, and the tournament promises to be the most unpredictable in modern history. For the first time, 48 teams will compete across 16 cities in three host nations. The defending champions Argentina are not clear favourites. The all-time leading goalscorer in international football might play his final tournament. A striker who has never appeared at a World Cup could arrive as the most feared forward on the planet. And the expanded format means the margin between glory and disaster is thinner than ever. Follow every match live on iScore.ai.
With final squads submitted, last friendlies completed, and tactical preparations locked in, here are the seven questions that will define the next five weeks of football.
1. Can Mbappe Deliver Back-to-Back World Cups?
Kylian Mbappe is attempting something no player has done since Brazil's Garrincha in 1962: win consecutive World Cups as the central attacking force. He scored a hat-trick in the 2022 final and finished with 8 goals to claim the Golden Boot. At 27 years old, he is in his physical prime and arrives off a strong first season at Real Madrid. The question is not whether Mbappe is capable, it is whether France can sustain the level required across a longer tournament with more matches.
France's path through Group F alongside Senegal, Iran, and New Zealand looks manageable on paper. Didier Deschamps has built a squad with extraordinary depth in every position, from Ibrahima Konate and William Saliba at the back to Aurelien Tchouameni and Eduardo Camavinga in midfield. The bigger test comes in the knockouts, where France could face England, the Netherlands, or Germany in the later rounds. Mbappe's ability to produce moments of individual brilliance in tight knockout matches, exactly what he did against Argentina in the 2022 final, is what separates him from every other player in the tournament. Read our full France World Cup 2026 squad profile for the complete breakdown.
2. Will the 48-Team Format Produce Genuine Upsets?
The expanded 48-team format is the single biggest structural change in World Cup history. Twelve groups of four teams, with the top two plus the eight best third-placed teams advancing to a Round of 32, means 104 matches instead of 64. More matches mean more opportunities for shock results, but they also mean more matches where heavily favoured teams face significantly weaker opposition.
The group stage data suggests the format will produce lopsided scorelines in some matches. When Spain face Cape Verde Islands, or Germany meet Curacao, the gap in quality is enormous. But the expanded knockout bracket, with 32 teams instead of 16, creates a genuinely new dynamic. A third-placed team that sneaks through with 3 points from three group matches could catch a group winner cold in the Round of 32. The 2022 World Cup showed that tournament football rewards momentum over quality: Morocco reached the semi-finals despite not being one of the eight best teams in the competition. The 2026 format makes that kind of run more likely, not less.
The key group to watch is Group I, where Portugal, Colombia, Uzbekistan, and Congo DR are paired together. Two of those teams will advance automatically, and a third could qualify as a best third-placed side. The margin between finishing second and fourth in that group could be a single goal. For a full breakdown of the structure, see our World Cup 2026 groups explained guide.
3. Is This Messi's Last World Cup?
Lionel Messi turns 39 during the group stage of this World Cup. He has not officially confirmed whether this will be his final tournament, but the physical reality speaks for itself. He is no longer the player who dragged Argentina to glory in Qatar, but he remains a creator and finisher of rare quality. His role has evolved from the all-action forward of his twenties to a more measured playmaker who picks his moments. The question is whether Argentina can win a second consecutive World Cup with Messi as a contributor rather than the dominant force.
Argentina's squad is stronger now than it was in 2022. Julian Alvarez has developed into one of the most complete forwards in European football. Enzo Fernandez controls midfield with increasing authority. The defence, anchored by Cristian Romero and Lisandro Martinez, is physical and organised. Lionel Scaloni's system no longer depends entirely on Messi producing magic, but his presence as a decoy, set-piece taker, and occasional game-changer gives Argentina an edge no other team can replicate.
The emotional weight of Messi's potential farewell adds a dimension that cannot be measured in data. Every Argentina match will carry the atmosphere of a tribute, and opponents will be acutely aware that they might be part of history. Whether that helps or hurts Argentina is one of the intangible storylines of the tournament.
4. Can Haaland Win the Golden Boot on Debut?
Erling Haaland will play his first World Cup match when Norway open their campaign, and he arrives as the most prolific goalscorer in European football over the past three seasons. He scored 51 goals across all competitions in 2025-26, a number that dwarfs every other Golden Boot contender. The question is whether Norway can provide him with enough service and progress far enough in the tournament for him to accumulate a winning total.
Norway are in Group K with Austria, Uzbekistan, and Congo DR. They are not the favourites in that group, but Haaland's presence makes them competitive against anyone. The historical data is encouraging: every Golden Boot winner since 1998 came from a team that reached at least the quarter-finals. If Norway can navigate the group stage and win a Round of 32 match, Haaland could have five or six games to pile up goals. His conversion rate from inside the box, his aerial dominance, and his penalty-taking reliability make him the most efficient pure goalscorer in the tournament. The expanded format's weaker group-stage opponents could inflate his numbers early. Read our full Golden Boot predictions analysis for the complete breakdown of every contender.
5. Which Host Nation Goes Furthest?
Three host nations, three very different trajectories. The United States have the most talented squad in their history but face a tough Group D with Paraguay, Australia, and Turkey. Mexico are rebuilding under new management and open the tournament against South Africa at the Azteca. Canada have the weakest squad of the three but benefit from home support across their group-stage matches in Toronto and Vancouver.
The historical data on host-nation advantage is clear. Six of the 22 World Cups have been won by the host nation, and hosts consistently outperform their pre-tournament expectations. South Korea reached the semi-finals as co-hosts in 2002. Japan reached the Round of 16. Even South Africa in 2010, the weakest host in modern history, drew with Mexico and beat France in the group stage. The combination of home crowds, familiar conditions, and reduced travel gives hosts a measurable edge.
The United States have the highest ceiling. With a roster featuring players from top European leagues and a manager in Mauricio Pochettino who has coached at the highest level, a quarter-final run is realistic. Mexico's passionate home support at the Azteca could carry them through the group stage, but their squad lacks the depth for a deep knockout run. Canada will be competitive but are unlikely to advance past the Round of 32.
6. Will Ancelotti End Brazil's 24-Year Drought?
Brazil have not won a World Cup since 2002, the longest drought in their history. Carlo Ancelotti, the most successful club manager in Champions League history, was appointed to end that streak. His tactical pragmatism and man-management skills are ideally suited to international tournament football, where the margins are small and the pressure is immense. But Brazil's path is far from straightforward.
The squad is loaded with talent. Brazil can field Vinicius Junior, Rodrygo, and Bruno Guimaraes in a front line that would grace any team in the tournament. The defence, however, remains a concern. Brazil conceded 8 goals in their last six qualifiers, and their centre-back pairing has not been settled. Ancelotti's preference for structured defending over Brazilian flair could either solve this problem or create tension with a squad accustomed to expressive football.
Brazil's Group E matches against Morocco, Paraguay, and Haiti should provide three wins, but the knockout bracket could pit them against France or Argentina in the quarter-finals. Ancelotti's ability to navigate those matches with a squad still learning his system is the central question of Brazil's tournament. The raw material is there. The coaching is world-class. The question is whether they have enough time together to put it all together.
7. Can Any African Team Reach the Semi-Finals?
Morocco proved at Qatar 2022 that an African team can reach a World Cup semi-final. Their run to the last four, built on a disciplined defensive block and rapid transitions, changed perceptions about what African football can achieve at the highest level. The question for 2026 is whether any of Africa's nine representatives can replicate that feat.
Morocco themselves are the strongest candidate. Their core from 2022 remains intact, with Achraf Hakimi, Noussair Mazraoui, and Sofyan Amrabat all in their prime. They are drawn in Group E with Brazil, Paraguay, and Haiti, a difficult but navigable group. A strong showing there could set up a favourable Round of 32 draw. Senegal, drawn with Belgium, Egypt, and New Zealand in Group C, have the squad depth to advance but face a tougher knockout path. Nigeria, Ghana, Ivory Coast, and Egypt all have individual quality but lack the tactical cohesion that made Morocco so effective in 2022.
The expanded format helps African teams in two ways. First, the weaker group-stage opponents created by the 48-team expansion make it easier to accumulate points. Second, the Round of 32 provides an extra knockout match against a group winner who may be vulnerable after a taxing group stage. Morocco's 2022 blueprint, defend deep, transition fast, ride the momentum, is replicable. Whether any team can execute it as effectively is the question.
FAQ
When does the 2026 World Cup start?
The 2026 FIFA World Cup kicks off on June 11, 2026, with the opening match between Mexico and South Africa at the Estadio Azteca in Mexico City. The group stage runs through June 26, followed by the Round of 32 starting June 28.
How many teams are in the 2026 World Cup?
The 2026 World Cup features 48 teams for the first time, expanded from the previous 32-team format. The 48 teams are divided into 12 groups of 4, with the top two from each group plus the 8 best third-placed teams advancing to a Round of 32.
Which countries are hosting the 2026 World Cup?
The 2026 World Cup is co-hosted by the United States, Mexico, and Canada. Matches will be played across 16 venues in 16 cities, with the majority of games in the US, 13 in Mexico, and 13 in Canada.
Who are the favourites to win the 2026 World Cup?
France, Argentina, Brazil, and England are the top favourites according to pre-tournament odds. France seek a third World Cup title, Argentina defend their 2022 crown, Brazil aim to end a 24-year drought under Carlo Ancelotti, and England look to capitalize on their deepest talent pool in decades under Thomas Tuchel.
What is new about the 2026 World Cup format?
The biggest change is the expansion from 32 to 48 teams, introducing 12 groups of 4 instead of 8 groups of 4. A new Round of 32 knockout stage has been added, meaning the tournament will feature 104 matches total, up from 64 in 2022. The top two from each group plus the 8 best third-placed teams advance to the knockouts.
Sources
- API-Football: World Cup 2026 squad data, fixtures, and group stage seedings
- FIFA.com: Tournament format, match schedule, and host city allocation
- Historical World Cup data: Golden Boot winners (1998-2022), host nation performance records
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