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.”
Werkself-TV shows the highlights of the Bayer 04 women's 2-1 at TSG Hoffenheim on the 3rd matchday of the Google Pixel Women's Bundesliga 2026/27.
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Starting with the 2026/27 season, Bayer 04 has created a permanent memorial space at the BayArena. In the upper section of Block A in the southeast corner of the stadium, Werkself fans can honour friends and family members with whom they have shared many special moments connected to Bayer 04. In the coming months, this space will be gradually expanded, in particular with the active support of the fans.
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Bayer 04 has secured a new premium partner in DXC Technology, a leading provider of enterprise technology and innovation. The club has agreed a partnership with DXC running until 30 June 2028. At the heart of the partnership is DXC’s role as an AI integration partner. The company is integrating Bayer 04’s previously separate digital systems into a unified fan journey that begins long before matchday and extends well beyond the stadium visit. As a partner of the women’s team and main sponsor of #B04eSports, DXC will be supporting two promising sections of the club during this period. DXC will also gain significant visibility as the sleeve partner of the women’s team in the DFB Pokal.
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Bayer 04 Leverkusen have secured a new premium partner in the form of DRIVIO. DRIVIO, already part of the club’s partner portfolio as a reliable car subscription partner for Bayer 04, will continue to support the club in this capacity and, with immediate effect, also join the premium group of companies that cooperate closely with the Werkself. The premium and car subscription partnership between Bayer 04 Leverkusen and DRIVIO will initially run until 30 June 2027.
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“Welcome home” was the message from a visually emotional fan in the direction of Moussa Diaby after Wednesday’s open training session. The French winger had just appeared on the BayArena training ground for the first time in three years following his return to Bayer 04. And before he took time for selfies and autographs, Diaby spoke to the media. Fellow new arrival Guéla Doué was also in action but not with the team for now.
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