Portugal and Spain face off in a highly anticipated World Cup round of 16 match in Dallas on July 6, 2026.
The winner advances to the quarterfinals to face either Belgium or the United States.
Portugal coach Roberto Martinez made one tactical change to his starting lineup after a 2-1 victory over Croatia.
Joao Felix replaces Rafael Leao, while captain Cristiano Ronaldo keeps his place up front.
Ronaldo, 41, has scored three times in the tournament so far. "I want to fully enjoy my last World Cup," he said in a pre-match press conference.
"Hopefully tomorrow will not be my last World Cup match."
The veteran forward acknowledged the media scrutiny but said missing a World Cup trophy would not diminish his career.
"But I will no longer be Cristiano Ronaldo if I have never won the World Cup," he added.
Spain coach Luis de la Fuente made no changes to his lineup, keeping the same eleven that beat Austria 3-0.
The historical record between the two nations in major tournaments stands at one win each and three draws.
Other Tournament News
Brazilian football federation director Rodrigo Caetano confirmed that manager Carlo Ancelotti will remain through the 2030 World Cup cycle despite Brazil's round of 16 elimination by Norway.
"He is our manager and remains so during the new World Cup cycle," Caetano said.
The French Football Federation asked FIFA to rescind a yellow card given to Michael Olise during their match against Paraguay to avoid a semifinal suspension risk.
FIFA President Gianni Infantino addressed a disciplinary matter regarding US player Folarin Balogun. He confirmed a phone call with US President Donald Trump but denied any outside influence.
"FIFA's departments are independent and work autonomously," Infantino said.
Trump later confirmed the conversation, arguing that Balogun's red card resulted from a standard collision. "The action for which he got red was not a foul," Trump said.
He added that preventing top players from competing hurts the tournament and requested a review.
England midfielder Jordan Henderson will miss the rest of the tournament due to a broken wrist suffered after falling over an advertising board following England's victory against Mexico.
He will undergo surgery but remains with the squad in a supporting role.
