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 1-2 loss against VfL Wolfsburg on the 2nd matchday of the Google Pixel Women's Bundesliga 2026/27.
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Bayer 04’s eight opponents in the group stage of the 2026/27 UEFA Europa League have been confirmed. At the draw on Friday 28 August held at the Grimaldi Forum in Monaco, the Werkself were drawn against two opponents from each of the four pots. There are a total of four home and four away matches. Read on for details of opponents and fixture dates.
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In the 3-2 defeat at Bundesliga newcomers SV 07 Elversberg, the Werkself found the back of the net in the closing stages and, with a bit of luck, could still have equalised. “Today, our play wasn’t good enough, particularly when it came to the basics,” said head coach Carles Martínez. Like the boss, Ibrahim Maza also wants to learn from the match and look ahead: “Next week, people should be able to see from the very first minute that we want it more than our opponents.” The Werkself review on the Bundesliga opener in 2026/27.
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Werkself TV shows the highlights of Bayer 04's 2-3 loss at SV 07 Elversberg on Matchday 1 of the 2026/27 Bundesliga season...
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No points to start the league campaign: Bayer 04 lost 3-2 away to newly promoted SV 07 Elversberg in the first Bundesliga match of the 2026/27 campaign. Two quick-fire goals from Lukas Petkov (8’) and Cole Campbell (10’) gave the hosts an early lead, before David Mokwa scored the Saarland side’s third shortly after half-time (46’). In the closing stages, the Werkself rallied and staged a late comeback with goals from Patrik Schick (77’) and Christian Kofane (90+1’), but the Black and Reds were denied an equaliser.
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