Head coach Peter Bosz reflected on that ahead of the game: "I don't think we can surprise each other any more. Above all, we saw in Berlin that Union are good opponents who are powerful and direct." The Werkself won the game in the second half of the season at the Alte Försterei Stadium 3-2 in the fourth minute of added time.
The team from Köpenick have been the most impressive of the newly promoted teams in the current Bundesliga campaign and they already have 30 points. The team coached by Urs Fischer have beaten Germania Halberstadt (6-0), Bundesliga side SC Freiburg (3-1) and SC Verl (1-0) in the DFB Cup. Now the Berliners are in the second cup quarter-final in the club's history against the Black and Reds, who are also enjoying a very successful this term.
Bosz sees one reason for the improvement of the Werkself in the second half of the season in the flexibility of his team – both from game to game as well as within a match. "I expect my players to read the game. Of course, we train every day and discuss everything. But in a game it can always happen that something else is suddenly required," said the Dutchman who will probably have to make do without captain Lars Bender for this game in addition to long-term injury Kevin Volland (ankle). Bosz: "We’re training this afternoon. But I don't think Lars will be able to join in."
Across all competitions, the Werkself have recentlyclocked up nine wins and one draw with only the Bundesliga clash at TSG Hoffenheim ending in defeat (1-2). Bayer 04 are not short of confidence. "If you also see how we played in those games – then it was very mature. You can say we've become more solid," said Bosz.
One unavoidable issue in professional football in recent weeks has been the debate about defamatory material in Germany's football grounds. Bayer 04 have adopted a clear position in this respect: The club, according to press officer Dirk Mesch, have great trust in their own fans as well as the supporters of Union Berlin that no such insulting banners will be seen at the BayArena. Criticism should be possible but always on a suitable and constructive basis. Bayer 04, Mesch continued, is in close contact with the DFB and fan representatives. In the event of any relevant incidents, Bayer 04 will adhere to the FIFA three-stage plan.
Match information:
Attendance: Bayer 04 expect 20,000 supporters at the BayArena
Broadcaster: Sport1, Sky (TV), Werkself Radio (bayer04.de)
Referee: Benjamin Cortus (Röthenbach)

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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The champions of Slovenia NK Celje are in a European competition for the fourth time in their history. This Wednesday, 16 September (kick-off: 21:00 CEST), the side lead by head coach Vitor Campelos visit the BayArena for matchday 1 in the group stage in the UEFA Europa League. Celje’s last match at the weekend did not go to plan. The lowdown on our next opponents.
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