Portugal face arguably their toughest assignment of the 2026 FIFA World Cup when they lock horns with neighbours Spain in a mouthwatering Round of 16 encounter.
With a place in the quarter-finals at stake, head coach Roberto Martínez is expected to rely on his experienced stars, although one major selection decision continues to dominate discussions ahead of kickoff.
The biggest question surrounds captain Cristiano Ronaldo, whose leadership and experience remain invaluable despite increased calls for a younger option to lead the attack.
The veteran striker has started every match for Portugal at this tournament and, despite mixed performances, Martínez has consistently shown confidence in the five-time Ballon d’Or winner.
Against a technically gifted Spanish side, the Portugal boss is expected to maintain that faith rather than make a drastic change in such a crucial fixture.
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In goal, Diogo Costa remains the undisputed first choice. The Porto shot-stopper has produced several important saves throughout the tournament and will likely be called into action against Spain’s fluid attacking unit.
The defensive line is expected to remain unchanged. João Cancelo should continue at right-back, where his attacking runs and ability to drift into midfield provide Portugal with an extra playmaker during possession.
At the heart of the defence, Rúben Dias will marshal the backline alongside Renato Veiga, whose composure on the ball and aerial presence have made him a reliable partner.
On the opposite flank, Nuno Mendes is expected to start after another impressive display, with his pace and defensive awareness crucial in containing Spain’s dangerous wide players.

Martínez is also likely to retain his preferred midfield pairing of João Neves and Vitinha. Neves brings relentless energy, pressing intensity and ball-winning ability, while Vitinha dictates the tempo with his intelligent passing and movement between the lines. Their battle against Spain’s technically gifted midfield could determine which side controls possession.
Further forward, creativity will rest on the shoulders of Bruno Fernandes, who is expected to operate as the central attacking midfielder.
Although he has yet to produce his very best performances in the tournament, the Manchester United playmaker remains Portugal’s chief creator and will be tasked with unlocking Spain’s disciplined defensive structure.
Out wide, Francisco Conceição is tipped to earn the nod on the right after impressing with his direct running and one-on-one ability, while Rafael Leão should continue on the left flank.
Leão’s explosive pace and ability to stretch defensive lines make him one of Portugal’s biggest attacking weapons in transition.
Leading the line should once again be Cristiano Ronaldo Despite speculation over whether Gonçalo Ramos could be handed a starting opportunity, Martínez appears reluctant to bench his captain.
Ronaldo movement inside the penalty area, aerial threat and vast experience in high-pressure matches could prove decisive in a knockout contest where chances are expected to be limited.
Portugal possible Lineup vs Spain
Predicted Portugal XI (4-2-3-1) Diogo Costa,João Cancelo, Rúben Dias, Renato Veiga, Nuno Mendes, João Neves,Vitinha, Francisco Conceição, Bruno Fernandes, Rafael Leão, Cristiano Ronaldo.
Read more about other World Cup teams in 2026 below:
Morocco national football team 2026
Argentina national football team 2026
Mexico national football team 2026
Spain national football team 2026
Brazil national football team 2026
France national football team 2026
Senegal national football team 2026
