Aston Villa's Torres reported to Spain's training facility in Las Rozas with some "muscular discomfort," as stated by the Spanish Football Federation.
Cubarsi has become an integral player for Barcelona, who currently lead La Liga, although he has only made four appearances for the national team and was not included in the squad that won Euro 2024.
Spain, having already secured a spot in the quarter-finals, will compete against Denmark in Copenhagen on Friday before hosting Switzerland on Monday.