Isidro Díaz de Mera: the referee for the Barça-Athletic Supercopa semi-final

FC Barcelona faces Athletic Club this Wednesday, January 7th (8:00 PM CEST) in the semifinal of the 2026 Spanish Super Cup, with Isidro Díaz de Mera officiating. The referee from La Mancha was appointed by the Referees Technical Committee (CTA), along with Jorge Figuero (VAR).

This season, Díaz de Mera has not officiated any Barça matches, but he has refereed Athletic on two occasions. The 34-year-old referee officiated the Basques' home defeat against Getafe (0-1) on matchday 10 of La Liga and was also the main official in the 'lions'' victory in Seville against Betis (1-2), on matchday 2.

In the 25/26 season, the referee from La Mancha, with experience in La Liga since 2020, has officiated a total of 102 league matches in which he showed 519 yellow cards and 17 direct red cards, in addition to awarding 39 penalties. The last time he officiated a Barça match was on January 4, 2025, in the 0-4 Copa del Rey Round of 32 victory against Barbastro (0-4).

How has Barça fared in matches officiated by Díaz de Mera?

Previously, Isidro Díaz de Mera refereed, on August 31, 2024, the Blaugrana's thrashing of Valladolid (7-0) on matchday 4 of LaLiga 24/25. In 23/24, he also refereed Barça's defeat against Girona (2-4), in December 2023 at Montjuïc.

In the 22/23 season, he did not officiate any matches involving Barça, while in the 21/22 season, he refereed two league games for the Catalans: the victory over **Levante** (3-0) and the home defeat against **Rayo** (0-1). In his debut season, 20/21, he first officiated a Barcelona match in the Catalan's thrashing of **Elche** (3-0).

In total, Barça has achieved **4 wins and 2 losses in 6 matches officiated by Díaz de Mera**, with a record of 19 goals for and 5 against. Athletic, on the other hand, has a negative record with the referee from La Mancha: 3 wins, 4 draws, and 4 losses in 11 encounters.

Barça's record in matches officiated by Isidro Díaz de Mera:

1. Games: 6
2. Wins: 4
3. Draws: 0
4. Losses: 2

Barcelona seeks to reach its fourth consecutive final in the Super Cup

This Wednesday, the team led by Hansi Flick begins the defense of the title obtained last year against Real Madrid (2-5) and seeks to reach their fourth consecutive Super Cup final, where in the last three editions they faced the 'merengues' in the decisive round.

Barça already played five consecutive finals of the tournament in the previous decade (2015-2019), but all of them with the format that directly pitted the League champion against the Cup monarch or runner-up. The Catalans are the top winners of the trophy with 15 crowns, followed by Real Madrid (13)