2026 World Cup: Just three scenarios where Messi and Ronaldo could finally face off ‘for the last time’

FIFA World Cup 2026: What has to go right for Lionel Messi and Cristiano Ronaldo to meet A record sixth World Cup for Lionel Messi and Cristiano Ronaldo could finally bring the only meeting football has ever seen: a World Cup clash between the sport’s defining rivals. Both Argentina and Portugal arrive in North America in encouraging form after winning their opening pre-tournament warm-ups, with Argentina beating Honduras 2-0 and Portugal beating Chile 2-1. While Messi is recovering well from a minor hamstring strain, Ronaldo is fully fit and expected to spearhead Portugal’s challenge.The prospect of a showdown between the two icons holds extra significance because despite defining an era of football for nearly two decades, they have never faced each other on the sport’s biggest stage. Their rivalry spans leagues, continents and competitions, but the FIFA World Cup remains the only major tournament where they have never crossed paths in a competitive match.That could finally change in 2026. With Ronaldo approaching 41 and Messi 39, both are widely expected to appear in their final World Cup. As a result, the expanded tournament offers perhaps the last chance for football’s most famous rivalry to get a World Cup chapter.However, whether this dream match becomes a reality depends on the very specific chain of results, elimination procedures and qualification scenarios that play out in FIFA’s newly expanded 48-team format. Before exploring these possibilities, it’s worth understanding how the tournament is structured, as the format itself is what makes a potential Messi-versus-Ronaldo encounter more attainable and complicated than ever before.

How the 48-team World Cup actually works

The 2026 tournament, which takes place in the United States, Canada and Mexico, expands from 32 to 48 teams, changing the entire rhythm of the competition.Instead of eight groups, there are now twelve groups labeled from Group A to Group L, and each group contains four teams. Argentina have been drawn in Group J alongside Algeria, Austria and Jordan, while Portugal are in Group K with Colombia, Uzbekistan and DR Congo.From these twelve groups, the way forward works in two layers.First, the straight part: the teams that finish first and second in each group automatically qualify for the knockout stage. This represents 24 teams.Then comes a part that didn’t exist in previous World Cups. All twelve third-placed teams are compared across the tournament based on points, goal difference and goals scored, with the top eight also qualifying. A total of 32 teams will thus get into the elimination fights.From there, the tournament becomes a straight-elimination bracket, starting in the round of 32, before moving on to the round of 16, quarterfinals, semifinals, and finally the final. The team that goes all the way will now play eight games instead of seven, reflecting the expanded structure, and the tournament will stretch to 104 games overall.This format matters because it creates multiple entry points into the knockout group, which is where a Ronaldo-Messi encounter is possible.

The weight both teams carry until 2026

Argentina arrived as defending champions after lifting the trophy at Qatar 2022, a moment that reshaped Messi’s international legacy after years of near misses that included a World Cup final defeat and three Copa América final losses before their breakthrough in 2021. Since then, Argentina have added another Copa América title and head into 2026 with continuity, depth and a team built around their captain.Portugal’s story was different. Ronaldo, the all-time top scorer in men’s international football with 143 goals, won the European Championship and two UEFA Nations League titles, but the World Cup remained out of reach. Portugal’s best finish in the Ronaldo era came in 2006 when they reached the semi-finals, and since then they have reached the round of 16 twice, in 2010 and 2018, a group stage appearance in 2014 and a quarter-final appearance in 2022, where they were knocked out by Morocco, who were heavily used as a substitute by Ronaldo.Messi has personally played 26 World Cup matches and scored 13 goals, while Ronaldo has played 22 matches with eight goals and both are expected to appear in their sixth World Cup, with Messi yet to officially confirm his participation.

Messi vs Ronaldo Worldcup Stats

All these connections are behind the simple fact that they are now in separate groups, Argentina in Group J and Portugal in Group K, meaning that any meeting can only happen once the knockout rounds begin.

Group stage expectations and probabilities

Argentina are widely regarded as strong favorites in Group J, with projections of a roughly 75% to 77% chance of finishing first, reflecting both their status as defending champions and the relative balance of the group, which also includes Austria, Algeria and Jordan. Austria are seen as the main challengers with an estimated 20% to 22% chance of winning the group.

Argentina’s Lionel Messi, second from left, poses with teammates and his sons before the 2026 World Cup qualifying soccer match against Venezuela at Monumental Stadium in Buenos Aires, Argentina, Thursday, Sept. 4, 2025. (AP Photo/Gustavo Garello)

Placed in Group K, Portugal are also expected to top their group with a squad that still includes Ronaldo and the likes of Bruno Fernandes and João Félix. According to the leading betting sites, Portugal are heavy favorites to top the group at the 2026 FIFA World Cup with an implied probability of around 65% to 71%, although Colombia are after a strong qualifying campaign in South America, led by Luis Díaz, James Rodríguez and Davinson Sánfferson such as Jhon, Richard Córdoberchez, along with other key figures such as Jhon, Richard C. Ríos.

FILE – Portugal players pose for a team photo before the 2026 World Cup Group F qualifying soccer match between Portugal and Hungary in Lisbon, Tuesday, Oct. 14, 2025. (AP Photo/Armando Franca, File)

Parenthetical reality: why they can’t meet soon

As both Argentina and Portugal were the top seeds placed in Pot 1 during the draw, FIFA structured the bracket so that teams from the same pot were split into different paths. Simply put, this means they cannot meet in the group stage and are kept separate until certain points in the knockout rounds depending on how they finish.Placing them in the J and K groups also puts them on intersecting sides of the bracket, which is why their encounters depend so heavily on specific finishing positions.

Scenario 1: both win their groups, quarter-final clash

If Argentina top Group J and Portugal top Group K, the two teams would enter the knockout stages on the road to meet in the quarterfinals, which are scheduled for July 11 in Kansas City, provided they win their Round of 32 and Round of 16 matches.Argentina’s journey in this scenario would begin against the runners-up from Group H in the Round of 32, followed by a Round of 16 tie against the winner of the clash between the second-placed teams in Groups D and G.Portugal, on the other hand, will face one of the third-placed qualifying teams in their Round of 32 match before progressing to a Round of 16 tie against the winner of the match involving the Group B winners.Only if both successfully make it through the two knockout rounds will the line-up line up for a Ronaldo versus Messi quarter-final encounter.

Scenario 2: both finish second, at the start of the Round of 16 meeting

If both teams finish second in their respective groups, the structure will bring them together much sooner, with a potential Round of 16 clash on July 6 in Arlington, again assuming both win their opening knockout games.In this event, Argentina would face the winner of Group H in the round of 32, while Portugal would face runners-up in Group L, which includes the likes of England, Croatia, Ghana and Panama.The key difference is that finishing in second place compresses the timeline, creating a path where the encounter takes place just one round after the initial elimination stage.

Scenario 3: split positions, only the finals remain

If one of the two teams wins their group while the other finishes second, the bracket will separate them completely until the final on July 19 in New Jersey.In this configuration, they are placed on opposite sides of the knockout draw, meaning they would have to advance through each round, round of 32, round of 16, quarter-final and semi-final without slipping through for the meeting to take place.This is the longest and most challenging route, but also the one that would bring the most symbolic ending: a World Cup final between two players whose rivalry defined an era.

Proxy: qualifying for third place

The expanded format adds an extra layer of uncertainty through the top three teams.If Argentina or Portugal finish third but still qualify as one of the top eight third-placed teams, their exact position in the knockout group cannot be determined until all group matches have been completed, as this order is based on points, goal difference and goals scored in all groups.This makes any Ronaldo-Messi encounter in this scenario unpredictable, as their paths will only be clear after the group stage is over.

A sixth World Cup for Messi and Ronaldo could finally bring the biggest showdown football fans have been waiting for.

Why is this World Cup different?

For all permutations and paths, the underlying reality is simple. It is likely to be the last time both players will be involved in the World Cup, and the 48-team structure of the tournament has made it possible, but not guaranteed, that they will finally meet.Argentina will last as expected, Portugal will go through a competitive group and both teams will make at least one or two knockout rounds flawlessly, depending on the route.Only then will the gap open in a way that allows the rivalry to reach a stage it has always missed.