Between 2014 and 2016 Maas, who played for Arminia Bielefeld and Hertha Berlin in the Bundesliga plus MSV Duisburg in the second division, was assistant coach to the current Bayer 04 head coach Peter Bosz. They were in charge at Dutch club Vitesse Arnhem for a total of 62 games in the Eredivisie. “In Rob Maas, we’ve appointed an innovative and strong-minded assistant coach who fits in really well here. He knows the Bundesliga and has already worked successfully with Peter Bosz. Rob will provide new ideas,” declared sporting director Simon Rolfes.
For Rob Maas, Bayer 04 are “a highly ambitious and very attractive club. That’s not just the perception in Germany but Leverkusen also have an outstanding reputation across Europe,” said Maas. “To be able to work with fellow coaches in developing an extremely exciting team is a fantastic challenge I’m really looking forward to.”
Bayer 04 are back at the BayArena! Under the slogan “One day. Two teams. One club.”, the Leverkusen stadium grounds will be transformed into a world of experiences – with a wide range of exclusive activities both on and off the pitch. Keep track of all the highlights in our blog for the 2026 season launch.
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Spurred on by a flawless hat-trick from Cornelia Kramer, the Bayer 04 women’s team won their penultimate pre-season friendly in commanding fashion. As part of the season launch, the Werkself beat Dutch top-flight side Feyenoord 7–0. In front of 3,000 spectators at the Ulrich Haberland Stadium, Kramer (6’, 25’, 45’), Sofie Zdebel (47’), Maja Sternad (59'), Natasha Kowalski (83') and Vanessa Fudalla (86') scored the goals for coach Roberto Pätzold’s side.
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Kicking off the new season with a fresh look: Bayer 04, in collaboration with sportswear manufacturer New Balance, has unveiled the official kit for Leverkusen’s e-Sports players for the coming season. The jersey is now available from the Bayer 04 online shop and the Fanwelt.
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Paulo Sergio and Bayer 04 have enjoyed close ties since the Werkself training camp in his native Brazil last summer. The club legend is in charge of the Bayer 04 Soccer Academy, which opened in the summer of 2025, and he has also been at this year’s training camp in the Weimarer Land. As well as interacting with the many fans who travelled to the camp, the 1994 World Cup winner used the time to plan the next steps for the Academy together with club officials. In an interview with bayer04.de, Sergio spoke about the project’s future development, the upcoming visit by young Academy players to Leverkusen, and plans for the coming months in Germany and Brazil.
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A round-up of the Werkself training camp in the Weimarer Land, all in one place: in our daily blog you’ll find all the insights and updates from the day. Day five (Thursday 6 August) is as follows: The squad have the final open session of the training camp in the morning. After lunch, there will be a team event.
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