'Like a son' - Roberto Martinez sad to lose 'best in the world' to injury as Portugal boss calls on Diago Dalot to fill in for irreplaceable star

Mendes suffered a left knee sprain during PSG’s Champions League clash with Bayern Munich in midweek, ruling him out for two crucial international fixtures. The 22-year-old has been central to Portugal’s defensive structure, combining pace, defensive stability and an ability to drive attacks down the left flank.

“My assessment of Nuno Mendes is subjective, he’s like a son,” Martinez said. “There’s no other left-back who can defend one-on-one, make overlapping runs, and play inside or outside with the ball. He's a complete player, he can play centre-back. He's a decisive player for his club and for me, right now, he's the best in the world. Other coaches don't have to agree with me."

With Nuno Tavares also sidelined, the absence leaves Portugal without a natural left-back, forcing Martinez to turn to tactical adjustments and versatile defenders.

To address the gap, Martinez is expected to deploy Dalot and Cancelo in hybrid full-back roles. Dalot, thriving at Manchester United under Ruben Amorim, has evolved into a reliable two-way defender known for his composure, fitness and ability to play on either flank. Dalot was earlier the go-to left-back for Portugal but has since dropped in the pecking order with a loss in form and Mendes rise at PSG last year. Dalot has played 32 matches for Portugal across all competitions.

Cancelo, meanwhile, offers Portugal creative flair and width. A natural right-back at Al-Hilal, he often drifts inside to dictate play, operating almost like a midfielder. While his offensive instincts differ from Mendes’ balanced profile, Cancelo’s experience and versatility make him vital to Portugal’s adaptability. Cancelo has played 62 games for Portugal across all competitions and has also scored two goals in the competition.  

“We need to find solutions, to find balance on the wing, with Cancelo and Dalot,” Martinez explained. “We need to build on the chemistry we already have, there’s no time for drastic experiments before two important games.”

Before his injury, Mendes had been a cornerstone of Portugal’s qualifying campaign. Featuring in all six matches, he provided crucial defensive stability and attacking thrust. His pinpoint assist to Cristiano Ronaldo in the 2-2 draw against Hungary not only saved a point but also helped the forward set the record for most goals in World Cup qualifying history with 41 goals.

Mendes’ influence extended beyond numbers. His pace in recovery, ability to overlap in transition, and composure under pressure have been essential to Martínez’s system. Portugal have yet to lose with Mendes on the pitch in these qualifiers, which speaks volume about why the manager didn't really have to bother with an alternative in that space.

His injury arrives at a delicate moment, with Portugal needing positive results against Ireland and Armenia to secure top spot and automatic qualification for the 2026 World Cup.

Portugal enters the final stage of World Cup qualifying unbeaten, with four wins and two draws from six games. They top Group F with 10 points, comfortably ahead of their nearest rivals Hungary. Ronaldo continues to lead by example being their top-scorer in the competition with five goals.

Despite their strong position, Martinez acknowledges the challenge ahead: “We must adapt quickly and stay focused. Every player knows their role, we can’t depend on one individual, no matter how special he is.”

As the team faces Ireland in Dublin on November 13 and Armenia on November 15 in Porto, Portugal’s depth and resilience will be tested. All eyes will be on Dalot and Cancelo to maintain Mendes’ standards, ensuring Portugal’s fluid wing play and defensive strength remain intact.