Kai, you didn't produce your best performance against Stuttgart but are through to the quarter-finals. What's your assessment of the game a few days after the match?
We knew beforehand it would be a tough game. Stuttgart are in the second division and at the end of the day we've got more quality in our squad but it was the DFB Cup. The underdogs always have a chance. And Stuttgart played well. They sat back and were very compact in defence. That meant we had little space and they were able to play on the break. And they did that well several times. It definitely wasn't our best game in this competition although it's only really all about going through to the next round.
You were captain of Bayer 04 for the first time against VfB. How did you feel on the night?
Personally, it's obviously a great feeling. Being allowed to be captain of this team is, in my eyes, appreciation for the years of hard work for this club. It really means something to me to be able to lead the team onto the pitch as captain even if my first priority is to play football. And then it's not so important if I've got the armband or not.
Dortmund went out of the cup against Werder Bremen but have really impressed in the league with three wins and incredible power up front. How do think the game will turn out?
I've got a good feeling about the game. We can't afford to sit back and we have to be very confident. That will be necessary. For me, BVB are currently one of the best teams in the league along with Bayern and Leipzig. It will be a really tough task. But we'll do all we can to win the game.
How can you, as a team, keep on top of the outstanding BVB strikers Haaland and Sancho?
They've got a terrific attack. Don't forget Julian Brandt. I think he's a key factor in the recent run in the Bundesliga alongside Haaland and Sancho. Of course, it will be important to organise our overall defence but we should think about our own strengths first. In the first half of the season we showed we could dominate against Dortmund. We should build on that and use our chances better than in the first match this season.
You played alongside Julian 'Jule' Brandt at Bayer 04 for many years . But I suppose your friendship will be over for 90 minutes?
We’re good at separating the two things. I can remember our legendary clash on the console. (He smiles). On the pitch, we’ll do all we can to win for our teams and afterwards he will be very welcome to come into our dressing room.

With their wonderful goals, Martin Terrier and Florian Wirtz are up for the Bundesliga Goal of the Year 2025. Voting for fans will run exclusively via the official Bundesliga app until Sunday, 4 January.
Show more
Last-minute ecstasy, huge disappointment and a historic performance on the European stage - 2025 was a real emotional roller coaster, especially for the U19s. A rousing run in the knockout phase secured the team a place in the final of the German championships, where they lost by the narrowest of margins. Despite the departure of several key players, the young Werkself team quickly regained their usual strength and qualified for the knockout rounds in the UEFA Youth League for the first time at the end of the year. In 2025, youngsters Jeremiah Mensah and Montrell Culbreath made their debuts in the Bundesliga, the DFB Pokal and the UEFA Champions League. The other youth teams also contributed great performances and a number of trophies to the collective Black and Red success, while the successful Bayer 04 Future Kids project broke new ground. Read on for the 2025 review of the youth teams.
Show more
Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
Show more
A memorable 12 months: 2025 was a year marked by success, intense competition and groundbreaking innovations for the #B04eSports team. After ending the 2024/25 season as runners-up, the Leverkusen-based console pros got down to business in a new, completely restructured season model, in which showdowns rather than divisions were the decisive factor on the road to the final round of the German Club Championship. Bayer 04 quickly earned a place in the history books of the most prestigious competition in German eSports and secured some valuable advantages for the coming year. Bayer04.de takes a look back at 12 months full of passion and the determination to take the next step.
Show more
Sustainability once again had many faces at Bayer 04 in 2025: In community activity, the club supported countless regional campaigns, including the Leverkusener Tafel, the Frauenennotruf Leverkusen e.V. and the homeless aid organisation "Kältegang". But the Black and Reds have also been involved in good causes around the world - including the Young Coaches training programmes in Uganda and Ecuador plus the Genuine World Cup in the USA, where the Inclusion Werkself competed. Bayer 04 was also fully committed to the environment and underwent external and independently certification in accordance with the European environmental management standard EMAS, for example, to analyse and optimise the club’s environmental efforts. Looking back at sustainability in 2025.
Show more