
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.”

Bayer 04 Leverkusen have agreed Kerim Alajbegovic’s transfer to Italian record champions Juventus. The club brought the 18-year-old attacking player back to Leverkusen this summer via a buy-back option, following a season at Red Bull Salzburg. Until his move to Austria, the Bosnia international had been playing for Bayer 04’s Under-19s.
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With 22 days to go until the start of the Bundesliga campaign, the Bayer 04 Women’s team have gained a fresh boost of confidence. In a friendly against Belgian top-flight side KRC Genk on Saturday afternoon, coach Roberto Pätzold’s team secured a 1–0 win. Lobke Loonen (20’) scored the winner for the Black and Reds at the Kurtekotten training centre.
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Werkself TV shows the highlights of the 3-0 victory in the friendly match against Rot-Weiss Essen...
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Bayer 04 Leverkusen will have to manage without Kennet Eichhorn for the time being. Following specialist medical examinations, the new signing from Berlin has been diagnosed with a metabolic disorder requiring treatment. This was preceded by excessive physical strain and weight loss, partly as a result of a gastrointestinal condition.
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A successful fourth preseason friendly ahead of the start of the training camp: The Werkself secured a 3-0 victory over Rot-Weiss Essen at the Ulrich Haberland Stadium. The goals in what was a commanding and dominant performance by Leverkusen from the outset were scored by Ibrahim Maza (8'), Patrik Schick from the penalty spot (23’) and, in the second half, Montrell Culbreath with a header (79’). The team set off for their training camp in Blankenhain in the Weimarer Land region after the game.
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