
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.”

The Sports Tribunal of the German Football Association (DFB) has fined Bayer 04 Leverkusen €185,000 for spectators setting off pyrotechnic devices during a total of five competitive matches. This relates to four Bundesliga matches and the DFB Pokal semi-final against Bayern Munich. The highest individual fine relates to the away match at FC Köln at the end of April.
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Bayer 04 Leverkusen have extended the contract with U19 goalkeeper Simeon Rapsch. The Germany youth international goalkeeper has signed a long-term contract with the Werkself running to 30 June 2029. The 18-year-old joined Leverkusen from FC Viktoria Köln in the summer of 2024.
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Ken Izekor is leaving Bayer 04 Leverkusen to join third-tier side Alemannia Aachen with immediate effect. The 19-year-old centre-forward joined the club from Alemannia in 2018, and Izekor is now returning to his hometown.
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The Golden Boy Top 100 traditionally lists Europe’s most promising young players. In the latest update, published to mark the start of the new season, four current Werkself players – alongside loanee Francis Onyeka – feature on the list. This means Bayer 04 have the most players in contention of any Bundesliga club.
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