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"We are looking forward to the first of at least four busy weeks. Sometimes it's good if you don't have so much time and simply keep on playing the whole time," said Alonso at the start of the press conference. The Spaniard did sound a warning: "We will have problems if we are not 100% on our game against Mainz tomorrow."
The opponents, who have conceded the second least number of goals in the league, are in top form: "They are currently in very good shape. They are very brave on the ball and play with great energy." At the same time, Mainz are also well organised in defence: "They have a fine feeling for when they need to press high when they need to sit back. They've shown that several times against top teams as for example against Bayern Munich and Borussia Dortmund."
Jeanuel Belocian (torn cruciate), Amine Adli and Victor Boniface are still unavailable. Alonso: "Adli can be back with the team by the end of January at the earliest, Boniface could return in the coming week but he needs time to train."
Alonso also had words of praise for Boniface’s fellow striker Patrik Schick: "He not only scores goals but also knows how to defend and knows what a great influence that has on our game." The coach was also positive about defender Piero Hincapie, who set up Schick in the 3-2 win at Borussia Dortmund: "We are very happy with his development. He's a real fighter regardless of position and I'm glad he finally provided an assist for Patrik. He's practiced that in training for a long time."
The home section will be sold out on Tuesday night and 1700 visiting fans are expected to travel from Mainz. There are still a few tickets in circulation on the official Bayer 04 ticket exchange .

Rüdiger Vollborn has been at the club for 40 years, he holds the record number of Bundesliga appearances for the club (401) and is the only Bayer 04 player to have won both the UEFA Cup (1988) and the DFB Pokal (1993). And the Berliner stayed with the Werkself after ending his impressive playing career working as a goalkeeping coach for the following nine years. Vollborn now works under the Bayer Cross as a fan liaison officer and club archivist. Since February 2021, the personal Black and Red lexicon takes Werkself fans under the heading of 'Rudi recounts...' on a brief trip through the history of Bayer 04 every month…
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Bayer 04 host top French club Marseille at the BayArena on matchday four in the 2026/27 UEFA Europa League group stage. The match kicks off on Thursday 5 November at 21:00 CET. The latest information on ticket sales.
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The BAYER 04 HILFT Day is celebrating an anniversary: for the tenth year running, a large number of employees of the Bundesliga club have been getting involved in a community project in Leverkusen and the surrounding area. Following the refurbishment of the city library last year, this time around some 70 staff members rolled up their sleeves to help out at the Bunker Youth Centre in Leverkusen-Wiesdorf. With the support of the Lebenshilfe workshops in Leverkusen and partner Coca-Cola, a rubber football pitch was laid, a Bayer 04-style lounge was created and other projects were carried out. Werkself players and coaching staff also gave their all.
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Bayer 04 Leverkusen and sponsors club partner NRG24 are continuing their partnership, which has been in place since the summer of 2023. The Bundesliga football club and the energy consultancy firm have extended their successful partnership until 30 June 2027.
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