Ahead of the clash with the revived Old Lady, the Werkself head coach believes the two remaining Bundesliga matches have to be won to ensure progress to the Champions League next term. "We know what we have to do – and that's win the game tomorrow. We can't afford to look at what Gladbach, Leipzig or Dortmund are doing but instead focus on ourselves. That's the only thing that will help us," said the 56-year-old at the pre-match press conference.
After a hectic season, the team from the capital face two dead rubbers in the remaining games – neither Europe nor relegation are possible – but Bosz sounded a warning about the opponents who are now coached by former Werkself manager Bruno Labbadia: "We know more hangs on the game for us than for Hertha Berlin. Nevertheless, we expect to face an opponent tomorrow who wants to win. That's what every professional athlete wants."
The Dutchman continued that everybody at the club wants the same energy shown at the empty Olympic Stadium as was evident in the 3-1 derby win against FC Köln. "There are two games left in the Bundesliga – two finals," declared Bosz.
It remains to be seen whether Sven Bender will play after going off against FC Köln due to injury. The 31-year-old will fly to Berlin today. But Bosz said there is a question mark over a possible appearance by the defender. The captain Lars Bender (foot) and Karim Bellarabi (muscle) will not be in the capital as they are still involved in individual training sessions. However, Bosz has not given up hope that the duo could return for the DFB Cup final against FC Bayern (4 July): "We're pretty confident the two of them will play a role. I think it's even looking very good at the moment,"
Three Black and Red defenders are in danger of a one-match ban in Berlin that would mean they would miss the game against Mainz 05: Aleksandar Dragovic, Jonathan Tah and Wendell have already picked up four yellow cards. Bosz finished off by saying: "We have to win the game tomorrow. So we'll use all the players available to us."
Match information:
Broadcasters: Sky and Werkself Radio (bayer04.de)
Referee: The referee will be announced on the day of the game


A special visit to the BayArena: 222 members from volunteer fire brigades in Leverkusen, the Rheinisch-Bergisch district and the Oberbergisch district watched the Werkself’s 2–0 home win over Slovenian champions NK Celje live in the stadium. Bayer 04 had invited them to the 2026/27 Europa League opener as a thank-you for their tremendous dedication. They watched the match together in Block F4.
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The Bayer 04 U19s have extended their winning run with a fifth consecutive victory on Matchday 5 of the DFB Youth League’s preliminary round. Coach Patrick Greveraars’ side secured a 3–2 (2–1) win in their match against second-placed FC Viktoria Köln, with Burak Kir and Nebe Domnic scoring for the hosts in the first half before captain Ben Hawighorst found the net after the break.
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Bayer 04 will have to manage without defender Guéla Doué for the time being. The Ivory Coast international sustained a muscle injury to his right calf during the final Werkself training session yesterday ahead of the Europa League clash with Slovenian champions NK Celje.
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For the first time since reaching the final against AS Roma (2–2, first leg 2–0) in May 2024, Bayer 04 are playing another home match in the UEFA Europa League – and they will be wearing their new European kit. On Wednesday 16 September (kick-off: 21:00 CEST), the BayArena will welcome Slovenian champions NK Celje, who appointed a new coach this week following a mixed start to the season. Under the slogan “40 Years Across Europe. Still Creating History.”, the Black and Reds now aim to add the next chapter to their European history, which has seen so much success in recent years. Bayer 04 fans can follow the match on free-to-air TV on RTL, as well as on Sky and Werkself Radio. The matchday news.
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European football returns to the BayArena: Bayer 04 host Slovenian champions NK Celje on matchday 1 in the group stage of the 2026/27 UEFA Europa League. Ahead of the match on Wednesday 16 September (kick-off: 21:00 CEST), head coach Carles Martínez and midfielder Aleix Garcia spoke at the pre-match press conference. The focus was primarily on the great anticipation surrounding the competition and the clear objectives for it – and, given the circumstances, on a last-minute change to the opposition line-up.
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