
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 0-1 loss against SGS Essen on the 11th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
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Following the international break, Bayer 04 are away to VfL Wolfsburg on Bundesliga matchday 11 in 2025/26, on Saturday, 22 November (kick-off: 15:30 CET) in the first of eight matches between now and Christmas. Ahead of the game at the Volkswagen Arena, head coach Kasper Hjulmand spoke about the Wolves, the reunion with some familiar faces and the latest updates on his own squad.
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VfL Wolfsburg are looking for a fresh start after parting company with head coach Paul Simonis and sporting director Sebastian Schindzielorz during the recent international break. The Wolves are looking to kick off their revival this Saturday, 22 November (kick-off: 15:30 CET), in the home game against the Werkself. The lowdown on our next opponents.
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His loss has left Bayer 04 deeply saddened: Dieter Herzog, World Cup winner in 1974 and seven years playing for Bayer 04, passed away this week at the age of 79.
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A week after the disappointing DFB Pokal exit at Hamburger SV, the Bayer 04 Women return to league action. In a home match against SGS Essen on Saturday, 22 November (kick-off: 14:00 CET at the Ulrich Haberland Stadium), coach Roberto Pätzold's team will be fighting to maintain a good position in the chasing pack in the Google Pixel Women's Bundesliga.
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