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 riding a wave of success on the European stage: After three wins from their first three games and as the only team yet to concede a goal, the Werkself sit second in the table in the group stage of the UEFA Europa League. With another three points in their first-ever competitive match against Olympique Marseille on Thursday night, 5 November (kick-off: 21:00 CET), Bayer 04 could leap to the top of the table. Meanwhile, the French side are riding the wave of a winning streak in Ligue 1, but are yet to pick up any points in the Europa League. For one Werkself player, Thursday night will mark a reunion with his former team-mates. Today’s matchday news.
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The Europa League campaign continues: Bayer 04 host Olympique Marseille at the BayArena on matchday four of the group stage on Thursday 5 November (kick-off: 21:00 CET). Ahead of the clash against the club from the French Mediterranean coast, head coach Carles Martínez spoke about the visitors’ form and had some good news regarding the squad. Former OM player Facundo Medina spoke, amongst other things, about the factors that will be crucial against his old club.
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The Bayer 04 Round of 16 tie in the 2026/27 DFB Pokal has been scheduled. The Werkself will host Bundesliga rivals RB Leipzig on Wednesday, 2 December, at 18:00 CET. That was announced by the German Football Association (DFB).
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Video game developer Electronic Arts (EA), in collaboration with the Bundesliga, has announced the six nominees for the Bundesliga Player of the Month award for October 2026 – and Bayer 04’s Ibrahim Maza is among them. Fans of the Black and Reds can vote from now until Sunday 8 November (23:59 CET).
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