
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.”

Attacking midfielder Paulina Bartz is leaving Bayer 04 Leverkusen for good on a permanent move to Hamburger SV in the Google Pixel Women’s Bundesliga. The 21-year-old, who was on loan to the newly promoted side in the winter, originally had a contract to 2027.
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The Bayer 04 Football School opened in 2007 – now this successful programme is getting a new name and a new logo: with immediate effect, the Bayer 04 Football School powered by BarmeniaGothaer is becoming the Bayer 04 Football Academy powered by BarmeniaGothaer.
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Rüdiger Vollborn has been at the club for 40 years, he holds the record number of Bundesliga appearances for the club (401) and is the only Bayer 04 player to have won both the UEFA Cup (1988) and the DFB Pokal (1993). And the Berliner stayed with the Werkself after ending his impressive playing career as he worked as a goalkeeping coach for the following nine years. Vollborn now works under the Bayer Cross as a fan liaison officer and club archivist. Since February 2021, the personal Black and Red lexicon takes Werkself fans under the heading of 'Rudi recounts...' on a brief trip through the history of Bayer 04 every month…
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The sustainable use of the BayArena seats removed as part of the current stadium upgrade has taken on a new dimension: Following on from numerous Bayer 04 fans receiving their ‘Undefeated Champions seats’ and various clubs and community organisations from Leverkusen and the wider region having collected the dismantled seats, Blau-Gelbe Kreuz e.V. also made their way to the BayArena recently. The German-Ukrainian aid organisation took away around 2,100 seats; in Ukraine, these will be used to upgrade the sports infrastructure of two clubs.
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