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)

A group of about 50 members of the Bayer 04 Football Academy São Paulo visited Leverkusen over the past few days, accompanied by Bayer 04 club legend Paulo Sergio and Luiz Felipe (managing director of academy in São Paulo) for a week full of football, encounters and very special insights. In addition to the Bundesliga away game in Elversberg and the home game against Union Berlin, the visit also featured a joint training session with the Bayer 04 Football Academy in Leverkusen and a tour of the Bayer AG facilities. The guests also gained special insights into the club and the world of Bayer 04.
Show more
The men's clothing retailer LERROS will remain the official fashion and premium partner of Bayer 04 for the current season. As in the past, LERROS will provide the club's men's team, coaching staff and management with high-quality clothing for international trips.
Show more
“Diaby! Diaby! Diaby!” was the cry around the BayArena as the Werkself danced in front of the north stand following their 4-0 win over Union Berlin. Captain Edmond Tapsoba gave his new (and old) teammate a friendly shove forward to take in the acclaim from the fans. The returning Frenchman was typically reserved in thanking the supporters but was clearly emotional about what was happening.
Show more
Bayer 04 produced a dominant and impressive 4-0 win over Union Berlin as they picked up three points in their first home game of the 2026/27 Bundesliga campaign. Exequiel Fernández opened the scoring after only 41 seconds, with Facundo Medina doubling the lead before the half-hour mark. Patrik Schick and Ibrahim Maza continued the procession in the second period, in which Moussa Diaby came on for his first Leverkusen appearance for over three years.
Show more