
"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."

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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Werkself-TV shows the highlights of Bayer 04 Women's 2-1 win at SC Freiburg on Matchday 5 of the 2026/27 Google Pixel Women's Bundesliga.
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Bayer 04 produced an impressive display from start to finish as they maintained their perfect home record this season with a 2-0 win over RB Leipzig on Bundesliga Matchday 4. Patrik Schick opened the scoring just before half-time, with Miguel Gutiérrez getting his first Werkself goal to wrap up the three points at the BayArena, where fans also got to enjoy the family matchday activities.
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Peter Hermann passed away on Saturday at the age of 74. The entire Bayer 04 family is deeply saddened by the loss of a much-loved figure who helped shape football in Leverkusen over many decades. He was also one of the most respected coaches in the whole of Germany. Hermann had been suffering from ALS (amyotrophic lateral sclerosis) for some time.
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