
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.”

Former Bundesliga and Germany keeper Manfred Manglitz, who was promoted to the Oberliga West with Bayer 04 in 1962, passed away on Monday at the age of 86.
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The Werkself fixture list for the 2026/27 season in the Google Pixel Women’s Bundesliga has been finalised. To kick off the season, coach Roberto Pätzold’s team travel to RB Leipzig between 21 and 24 August. The fixtures were announced by the German Football Association (DFB) on Thursday morning. The season will conclude with a home match on 23 May 2027 against newly promoted side Mainz 05.
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On Wednesday evening, Monheim City Council voted against a planning resolution for the Bayer 04 Campus on Alfred-Nobel-Straße in Monheim in a secret ballot, with 19 votes in favour, 25 against and one abstention. The legal status of the project therefore remains unchanged.
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The Bundesliga has set the exact dates for the first four matchdays in the 2026/27 league campaign. Here is an overview of the fixtures.
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