Martinez has become Inter's starting goalkeeper this season after Yann Sommer left as a free agent at the end of his contract in June 2026. The 28-year-old has made one appearance for La Roja, debuting in June 2021 in a friendly against Lithuania. This call-up could allow Martinez to make his first competitive appearance with his national team.
The Spain squad for the Nations League games includes Martinez alongside other goalkeepers Unai Simon and David Raya. Martinez has kept one clean sheet in five Inter appearances across all competitions this season, conceding eight goals. Spain will visit England on September 26, host Croatia on September 29 and Czechia on October 3, then travel to Croatia on October 6 for the opening four games of Nations League Group C.
No other Serie A representative is included in the defending World Cup champions' squad. Martinez's inclusion in the Spain squad is a significant development for the Inter goalkeeper, who will now have the opportunity to represent his country in competitive matches.