
"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 Leverkusen welcomes a new official member to the Sponsors’ Club at the start of the 2026/27 campaign. KKV Kabelverlegung GmbH & Co. KG is expanding its existing partnership and will, with immediate effect, act as a supporter of the Bundesliga club at the second-highest partner level, just below the premium tier. As an official partner in the Sponsors’ Club, KKV will now enjoy significantly enhanced visibility during Werkself matches at the BayArena. The new contract is initially valid until 30 June 2028.
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Bayer 04 Leverkusen has extended the existing partnership agreement with EDO Personalservice GmbH and, at the same time, expanded its collaboration with the Cologne-based company. The official partner in the Business Club has been upgraded within Bayer 04’s partner network. The revised and enhanced support for the club has initially been agreed for two years, running until 30 June 2028.
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Video games developer Electronic Arts (EA), in collaboration with the Bundesliga, has announced the six nominees for the Bundesliga ‘Player of the Month’ award for September – Bayer 04’s Miguel Gutiérrez has made it into this select group after just four Bundesliga matches. Fans of the Black and Reds can vote from now until Sunday 27 September (23:59 CEST).
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Calling all Werkself fans: Even during the three-week international break – a first for September and October – you have the chance to visit the BayArena – and for a very special occasion. Bayer 04 is hosting a Health Day on Saturday 3 October, from 10:00 to 14:00 CEST in the Premium Lounge. Together with Bayer Vital and main sponsor BarmeniaGothaer, the Bundesliga club invites you to an interactive, free event centred on the theme of health. Partners will be present on site with their own exciting activities. Here is an overview of the programme of events.
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