
Mainz 05 triumphed in this fixture last season with a 3-2 win at the BayArena. For the Black-and-Reds it was one of only three home league defeats in total under Xabi Alonso, while for Mainz it's one of just two away wins in the league since October 2022. Bayer 04 came out on top in the last encounter though, winning 3-0 earlier this season.
The two sides have met competitively 36 times in total, with a slight advantage for the Werkself, who have won 19 games. Twelve have gone the way of Mainz, while just five have ended in a draw.
New boss Bo Henriksen, Mainz's third head coach of this season after Bo Svensson and Jan Siewert, got off to a perfect start with a 1-0 win against FC Augsburg last weekend. It ended a run of 11 games without a win and was only their second success of the current campaign. The Rhineland-Palatinate club, who signed Nadiem Amiri from Leverkusen in January, are particularly physical in their play. No side have contested more tackles per game than the 05ers this season (118). Two other stats underline this point: Mainz have registered the most fouls (298) and second-most cards (61). Read a more thorough analysis of the opponents HERE.
Bayer 04 is using the home game against Mainz as an opportunity to organise the second Bayer Sports Family Match Day of the season. With this event and many others, the historic connection between Bayer 04, TSV Bayer 04 Leverkusen and Bayer AG is being passionately revived under the Cross. Numerous activities centred around the Bayer sports clubs and Bayer AG will provide a special setting today. The programme for the themed match day starts with the stadium opening at 18:30 CET in the area around the BayArena and offers a wide range of highlights. More information can be found HERE.
The German Football Association (DFB) has appointed Timo Gerach as the referee for tonight's fixture. The 37-year-old has officiated two matches involving the Werkself to date, with the Black-and-Reds winning both. Gerard will be assisted on the touchlines by Florian Heft and Robert Wessel, with Felix Zwayer as the VAR.

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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