Guillermo Cuadra Fernández represented Spain as the assistant VAR for the 2026 UEFA Super Cup.
The officiating list identifies Cuadra Fernández as the assistant video assistant referee in the final between Paris Saint-Germain and Aston Villa. Marco Di Bello of Italy was the VAR, while Omar Artan of Somalia was the referee.
The officials came from several national associations. The assistant referees were Liban Abdoulrazack Ahmed of Djibouti and Stephen Eleazar Onyango Yiembe of Kenya. Rade Obrenović of Slovenia served as fourth official, creating a multinational officiating team.
Cuadra Fernández’s nationality should not be confused with the nationalities of the managers. Luis Enrique led PSG and Unai Emery led Aston Villa; both are Spanish, but neither was part of the refereeing crew. The question concerns the assistant VAR specifically.