
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 away to Croatian champions Dinamo Zagreb on Matchday 5 of the league phase of the 2026/27 UEFA Europa League. The game kicks off on Thursday 26 November at 18:45 CET at the Maksimir Stadium. All the information on ticket sales.
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It wasn’t just on the pitch that there was cause for celebration around the Werkself’s 2–1 home win against SC Freiburg. Plenty of happy faces could be seen near the dugouts at half-time too. Once again, CEO Fernando Carro, alongside former striker and club ambassador Stefan Kießling, paid tribute to eight supporters’ clubs celebrating up to their 30th anniversary on behalf of Bayer 04.
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It was a match that will live long in the memory of everyone involved: The Bayer 04 U19s celebrated their seventh win in seven matches in the DFB Youth League preliminary round – and yet it was a very special victory indeed: in the 4–3 (1–1) win at VfL Bochum 1848, no fewer than five goals came in the final quarter of an hour. As the 90th minute approached, coach Patrick Greveraars’s side found themselves behind, but then fought back in true ‘Laterkusen’ style.
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Under Carles Martínez, the Werkself have so far proved unbeatable at the BayArena. The Spaniard has led his team to victory in all three of their most recent home matches – and, it's worth noting, without conceding a single goal. On Sunday, 18 October (kick-off: 15:30 CEST / live on DAZN and Werkself Radio), current league leaders SC Freiburg will make the trip to Leverkusen, but will be without their top scorer. What's more, the Werkself have won all three of their previous home matches against the Black Forest club. With a goal, Patrik Schick could not only secure a fourth consecutive victory but also set a memorable record. Meanwhile, on what will be the ‘Health Day' at the BayArena, much of the focus will be on physical wellbeing. Today's matchday news.
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Werkself-TV shows the highlights of Bayer 04 Women's 1-1 draw against Eintracht Frankfurt on Matchday 7 of the 2026/27 Google Pixel Women's Bundesliga.
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