The Paris Saint-Germain (PSG) midfielder is seen as the crucial link that brings balance to "La Roja's" style of play, thanks to his ability to control the match tempo and exploit spaces with precision.

After being sidelined for Dani Olmo during the group stage, Ruiz was brought back into the starting lineup by coach Luis de la Fuente from the quarter‑final against Belgium and quickly proved his worth. He scored in the 2‑1 win over Belgium, then delivered an outstanding performance in the semi‑final to help Spain beat France 2‑0 and secure a spot in the final.
Despite having a highly talented midfield featuring Rodri, Pedri, Dani Olmo, Martin Zubimendi and Mikel Merino, De la Fuente still gives Ruiz a key role because of his versatility. The 30‑year‑old can drop deep to aid build‑up play, push forward to attack the box, or drift wide to create space for teammates.
According to experts, Ruiz's greatest strength is not speed or individual skill but his game reading and positional awareness. In the semi‑final against France, most of his movement was at low intensity, yet his off‑the‑ball runs, sharp observation, and constant positional adjustments made him a vital link in Spain's possession system.

In De la Fuente's system, Rodri mainly handles distribution, while Ruiz frequently opens up attacking options through intelligent runs and passes from different angles. The two midfielders also swap positions fluidly, adding variety to the team's play. If Pedri stands out for his dribbling and creativity, Ruiz provides balance and stability—essential qualities in knockout matches.
Besides his playmaking duties, the 1.88‑meter tall midfielder is also a dangerous threat in set pieces and aerial situations, thanks to his well‑timed runs from deep into the penalty area.
Ahead of the showdown with Argentina, Fabian Ruiz is expected to remain the midfield anchor—a zone that is predicted to determine the outcome of the final between two sides with the best ball‑control in the 2026 World Cup. If he continues to perform as he did against Belgium and France, the PSG midfielder is likely to be one of the decisive factors in "La Roja's" quest for their second world title in history.