
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.”

Today, Tuesday 16 December (live on B04eSports Twitch channel from 18:00 CET), the Leverkusen eSports players face the final three matches of the online preliminary round of Showdown Three in the VBL Club Championship 2025/26. In addition to 1. FC Heidenheim 1846 and SV 07 Elversberg, they will play Fortuna Düsseldorf, who are still unbeaten in this third showdown. The lowdown on our next opponents.
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Whether it's the Lions Club, Teens, Bayer 04 Club or Silver Lions - there was a lot going on again this year in all age-specific members' clubs. We look back on an eventful year with numerous events and many exclusive moments with the Werkself. We take a look at what the year 2025 had to offer for the members of the Bayer 04 Club...
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Bayer 04 picked up three points in the last home game of the year with 2-0 win against 1. FC Köln on matchday 14. After a dominant first half with good chances, Martin Terrier, who came on as a substitute in the second half, produced a brilliant scorpion kick to make to 1-0 for the Werkself (66') before captain Robert Andrich rounded off the derby victory with a header six minutes later.
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Bayer 04 host 1. FC Köln at the BayArena in the final home game of 2025 . Today’s match on Saturday, 13 December kicks off at 18:30.30 pm. The Werkself are looking for three points against 1. FC Köln, who are without a win in four games but they do have a shooting star in their ranks up front. The Bayer 04 Volunteering Award will be presented at the derby against the club from Cologne and another fan club will be honoured for many years of loyalty under the Cross. The matchday news.
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