
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.”

Werkself-TV shows the highlights of the Bayer 04 women's 4-0 win at SGS Essen on the 24th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
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Bayer 04 put in a brilliant performance to beat RB Leipzig 4-1 on Bundesliga matchday 32 and are now fourth in a Champions League spot. The Black and Reds took control of the game right from the start and, with 75 per cent possession at one stage, took a 2-0 lead into the break through Patrik Schick (25’) and Nathan Tella (45+1’). The visitors initially tried to do more after the break, but the Werkself remained determined and Schick scored his second goal to increase the lead to 3-0 (76'). The Red Bulls pulled a goal back through Christoph Baumgartner (80'), but the disciplined Leverkusen side were not rattled - and certainly not Schick: The Czechia international crowned a brilliant display with his third goal shortly before the final whistle to make the final score 4-1.
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In the previous game against RB Leipzig in December last year, the Werkself turned came from behind to win 3-1 and further improved Leverkusen's already strong record against the Red Bulls. Montrell Culbreath stood out with his first goal on his debut for the Black and Reds. While the 18-year-old would certainly like to score a second goal against Leipzig on Saturday night, the attack-minded visitors come to the BayArena in confident mood after five Bundesliga victories in a row. The Nordkurve12 supporters group knows the Werkself will therefore once again be reliant on the vociferous support of the fans, and has once again called for the ‘Finally Red’ campaign in the run-in. Today’s matchday news.
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Video games manufacturer Electronic Arts (EA), together with the German Football League (DFL), announced the top male and female selections for the 2025/26 Bundesliga season this week. Bayer 04 striker Vanessa Fudalla is in the starting eleven of the women's "Team of the Season". Alejandro Grimaldo and Aleix Garcia have been selected as bench players in the men's team.
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