
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.”

In the first episode of the new interview series "A New Chapter", Werkself defender Jarell Quansah reflects on his first few months under the Cross and speaks about his journey from England to Leverkusen. Having come through the ranks at Liverpool, a new chapter began for Quansah in the summer at Bayer 04 — with new objectives, fresh challenges and much ambition. In the video, the centre-back speaks about his development as a player and person, about the courage to leave your own comfort zone, and about what it means for him to be part of an international team in a different country. Honest, reflective and full of motivation — just like the start of his Werkself career.
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Full focus on Hoffenheim: after the late postponement of the away match at Hamburger SV, the Werkself are looking forward. To get themselves in top shape for the key clash at top-six rivals TSG Hoffenheim on Saturday 17 January (kick-off 15:30 CET), a number of players showed full commitment even on a day off - including two AFCON returnees...
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After Rio de Janeiro, it's off to Thuringia: This summer, Bayer 04 Leverkusen will prepare for the 2026/27 football season in Germany. While Brazil was the destination last year, the Werkself will now set up their training camp in Blankenhain, just outside Erfurt, from 1 to 7 August 2026.
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Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
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Due to the last-minute postponement of the Bundesliga match between Hamburg and the Werkself on Tuesday, 13 January, Bayer 04 will reimburse the ticket price to all 3,500 fans who had already travelled to Hamburg as a sign of appreciation. The tickets remain valid for the rescheduled match (date not yet set).
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