England's proof of progress and the lessons learned by head coach Thomas Tuchel since the disappointment of World Cup semi-final defeat by Argentina will be put to the sternest test when they face holders Spain in Madrid.
Spain present the toughest assignment England could face, with the world champions' unbeaten run – in which they claimed the sport's biggest prize by beating Argentina in New Jersey in the summer – now stretching to 43 games.
Luis de la Fuente's side last lost - to Colombia - in March 2024, winning 34 games and drawing nine in the intervening period, during which they also became European champions, beating England in the Euro 2024 final in Berlin.
Little wonder, then, that England captain and Ballon d'Or winner Harry Kane describes Sunday night's visit to the Metropolitano Stadium as: "The perfect opportunity to try and prove ourselves."
Tuchel, who revealed Leeds United's James Trafford will get another opportunity in goal as he continues to alternate with Jordan Pickford, clearly feels the same as he added: "This will be proof of concept on the highest level. It's the biggest test in world football. Spain are unbelievable on an incredible run.
"Spain won the last big titles. We are trying to take it away from them. We are up for it.


