
"Mario Hermoso is an experienced player on the international stage and, in addition to playing as a central defender, he is a very capable and organised left back," said Bayer 04 sporting managing director Simon Rolfes in describing the 1.84 metre tall defender. "Mario will also bring additional versatility to our defence and will compensate very well for the absence of Jeanuel Belocian."
Hermoso knows Bayer 04 well having played the Werkself twice in Champions League games in 2022/23. "They were two highly emotional games with neither side giving anything away exactly like it was in Madrid a week or so ago," said Hermoso, who has made five international appearances for Spain. "I'm very much looking forward to aiming to achieve big targets with the Werkself. Everything is set up here for a successful season on the pitch."

Bayer 04 are introducing changes to the ticket price structure for the 2026/27 season. In addition to adjusting the ticket prices, the ticket categories will also be reorganised. All season ticket holders have already been informed of the changes by e-mail. The most important information at a glance.
Show more
Ibrahim Maza joined Bayer 04 from Hertha Berlin in the summer of 2025. The youngster from Berlin developed into a difference-maker in his first season with the Werkself. Find out what makes the highly talented player tick in this very personal interview. Among other things, Maza talks about his Algerian-Vietnamese-German home, the role of his family and the importance of Islam for him both in his private life and in football...
Show more
Bayer 04’s Ibrahim Maza is among the three nominees for the Bundesliga’s 2025/26 Rookie of the Season award. Fans have until 23:59 CEST on Thursday, 7 May to cast their votes in the official Bundesliga app.
Show more
Werkself-TV shows the highlights of the Bayer 04 women's 4-0 win at SGS Essen on the 24th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
Show more