Ahead of the clash with the already safe Mainz, the Dutchman declared: "We don't need to think about what's happening on the pitch at Gladbach. We have to win our game. And then we'll see if that's enough in the end."
In the best-case scenario, the Werkself will be happy to repeat the drama of the final matchday of the 2018/19 league campaign: Back then, the Black and Reds qualified for the Champions League with an emphatic 5-1 win against Hertha Berlin and a 2-0 defeat for Gladbach against Borussia Dortmund. "We showed then what is possible," said Bosz.
Good news: Ahead of the game with Mainz, the 56-year-old coach can select his team from his whole squad with the exception of Aleksandar Dragovic who is currently serving a one-match ban. Karim Bellarabi and captain Lars Bender returned to training with the team on Friday following injury. Bosz explained: "We'll see who plays tomorrow. Our only interest is definitely winning the match."
The team coached by Achim Beierlorzer have already secured their top-flight status with two recent wins at Dortmund (2-0) and fellow relegation candidates Werder Bremen (3-1). Bosz does not believe Mainz will let the season end with a whimper. The Werkself coach commenting on tomorrow's opponents: "They played very well against us in our narrow win earlier in the season (1-0 ed.). Mainz have some interesting players and a good team."
Match information:
Broadcasters: Sky and Werkself Radio (bayer04.de)
Referee: The referee will be announced on the day of the game

Werkself-TV shows the highlights of the Bayer 04 women's 3-2 win against RB Leipzig on the 12th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
Show more
For the second time in three weeks, Bayer 04 have to face a team that has just changed coach. The Werkself’s overall record against Augsburg and the Bavarians’ poor season so far both point towards a Leverkusen win, but head coach Kasper Hjulmand is still aware of the threat going into Saturday’s Bundesliga encounter (kick-off: 15:30 CET). Here’s all you need to know ahead of the Matchday 13 fixture at the WWK Arena.
Show more
The groups for the 2026 World Cup in the USA, Canada and Mexico have been finalised. At the draw in the USA capital Washington D.C., which was hosted by German top model Heidi Klum and others, 48 teams were drawn for the first time. The groups at a glance.
Show more
As part of the joint commitment of Bayer 04 and the City of Leverkusen to volunteering, the annual Volunteer Day took place in the 19nullvier Lounge at the BayArena. Fernando Carro, Bayer 04 CEO, Stefan Hebbel, Mayor of the City of Leverkusen, and club representative Stefan Kießling praised the commitment of the 200 or so volunteers from the region in attendance and thanked them for their impressive efforts.
Show more