
UEFA have appointed experienced Englishman Michael Oliver to oversee the game. The 37-year-old has been a FIFA referee since 2012 and has previously taken charge of two Bayer 04 matches. The first was a 1-0 win at Rosenborg in the 2012/13 Europa League, followed by a 2-0 victory at Lokomotiv Moscow in the 2019/20 Champions League campaign. Oliver will be assisted by compatriots Stuart Burt and Simon Bennett. Chris Kavanagh is the VAR.
Atletico were also one of Leverkusen’s opponents the last time they competed in the Champions League back in 2019/20. In fact, this is the fourth season where Bayer 04 and the Madrid club have come up against each other. Previous encounters were in the 2014/15 round of 16 (Atletico won on penalties), the same stage of 2016/17 (4-2 on aggregate for the Spaniards) and in the aforementioned group stage in 2019/20, when the Werkself won 2-1 at home and lost 1-0 in Madrid.
Both teams probably expected their campaigns to have started differently. While the Werkself are currently second bottom in the Bundesliga, while Atletico themselves won only two of their first four league outings. A win at the weekend after their opening 2-1 victory over Porto in the Champions League perhaps shows signs of improvement. Here’s more on our opponents.
Bayer 04 fans can also have all the most important information to hand in Champions League home games with Werkself LIVE. The flyer, which offers facts and starts on the clash with Diego Simeone’s team, is displayed in the BayArena. It’s also available for free online HERE.

For those who can’t be at the BayArena tonight, they can listen to the Werkself Radio in German. The broadcast starts around half an hour before kick-off. You can also keep up to date with the German live text. Both are available on bayer04.de and in the Bayer 04 app.

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.
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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.
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“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.
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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.
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