
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 Werkself conceded a late goal to suffer the third defeat of the season in Monday night's Google Pixel Women's Bundesliga fixture on matchday ten. Coach Roberto Pätzold's team lost 2-1 at SC Freiburg. Vanessa Fudalla (65’) scored the only goal for Bayer 04 who are now fifth in the table on 19 points.
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Bayer 04 midfielder Ibrahim Maza was honoured in Paris in the Best Algerian Young Player category at the Fennec d'Or awards for the Algerian Footballer of the Year, organised for the first time by the football journal La Gazette du Fennec. "It's an honour for me," said the 19-year-old, delighted with the award.
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On the back of two wins within four days, Bayer 04 Women round off an intensive Bundesliga week in the Black Forest. Roberto Pätzold's side have the chance to move back up to third place against SC Freiburg in the final fixture of Matchday 10 on Monday (18:00 CET) and draw level on points with second-placed VfL Wolfsburg.
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The last international break of this calendar year features the final qualifying matches for the 2026 World Cup in the USA, Canada and Mexico. An overview of who's playing where and when from a Leverkusen point of view.
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