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.”
An overview of current ticket sales for Bayer 04 home and away matches in the 2026/27 season.
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Werkself TV shows the highlights of Bayer 04's 2-0 win at OFI Crete on Matchday 3 of the 2026/27 Europa League season...
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Three games, three wins: Bayer 04 secured a 2–0 victory at Greek Cup winners OFI Crete with Jonas Hofmann scoring both goals at the Pankritio Stadium, right on the Mediterranean coast (35’, 38’). As a result, the Werkself have temporarily taken over top spot in the table on Matchday 3 of the league phase of the UEFA Europa League.
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'40 Years Across Europe' - and for the first time ever, Bayer 04 are travelling to Greece's biggest island for a European clash. There they'll take on OFI Crete - full name Omilos Filathlon Irakleiou (‘Association of Sports Friends of Heraklion’) - on Matchday 3 of the 2026/27 UEFA Europa League league phase. The meeting with the Greek Cup winners kicks off at 18:45 CEST on Thursday 22 October at the Pankritio. We’ll bring you all the latest updates from the trip here…
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