
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.”

Centre-back Melissa Friedrich is set to remain at Bayer 04 for another year. The longest-serving player in the squad, who joined the club in 2016, has extended her contract to 2027.
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Bayer 04 Leverkusen have signed Portugal U21 international Afonso Moreira. The 21-year-old winger joins the club from French top-flight side Olympique Lyon on a contract to 30 June 2031. In France last year, the left-winger made 37 appearances in Ligue 1, the Coupe de France and the UEFA Europa League, scoring a total of eight goals and providing eleven assists.
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A warm welcome to Leverkusen, Afonso Moreira! Bayer 04 have signed the 21-year-old Portuguese player from the top-flight French club Lyon. The left-winger has signed a contract at Leverkusen to 30 June 2031. Bayer04.de takes a closer look at the new signing.
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A new signing for the U19s: Bayer 04 have signed winger Clinton Wilson from Schalke 04. The 18-year-old previously played for Leverkusen youth teams from January to June 2024.
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