
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 German Football Association (DFB) confirmed the kick-off times for the second round of the 2026/27 DFB Pokal on Thursday. Bayer 04 will meet 1. FC Nürnberg on Wednesday 28 October at 20:45 CET.
Show more
This Wednesday afternoon, the German Football Association (DFB) announced the exact kick-off times for Matchday 6 in the Google Pixel Women’s Bundesliga. According to the fixture list, the Bayer 04 Women’s home match against Werder Bremen will be played on Friday, 2 October, at 18:30 CEST.
Show more
Just in time for the start of the school year, everyone was hard at work again at NaturGut Ophoven. For the 21st time, Bayer 04 have supported the annual ‘BioBrotbox’ campaign, which puts together a healthy breakfast for first-year primary school pupils in Leverkusen – and not only contributed 1,904 muesli bars but also plenty of enthusiasm too: Together with the U19 players Burak Kir and Clinton Wilson, Emily Wallrabenstein and Paulina Platner from the Women’s Bundesliga team helped with the packing. The latter was clearly delighted “that Bayer 04 are helping out with regional projects like this and showing their commitment to the local community”.
Show more
A group of about 50 members of the Bayer 04 Football Academy São Paulo visited Leverkusen over the past few days, accompanied by Bayer 04 club legend Paulo Sergio and Luiz Felipe (managing director of academy in São Paulo) for a week full of football, encounters and very special insights. In addition to the Bundesliga away game in Elversberg and the home game against Union Berlin, the visit also featured a joint training session with the Bayer 04 Football Academy in Leverkusen and a tour of the Bayer AG facilities. The guests also gained special insights into the club and the world of Bayer 04.
Show more