The team led by head coach Peter Bosz are preparing for the second Bundesliga home game in succession in icy temperatures. FSV Mainz 05 are the visitors on Saturday, 13 February (kick-off: 15.30 CET). The limited number of persons permitted at the BayArena due to the coronavirus pandemic will include Joachim ‘Jogi’ Löw.
This will be the first visit by the Germany coach to a match at Leverkusen since the start of the pandemic. The reason: The DFL hygiene protocol did not allow members of the DFB management to attend Bundesliga games until a few matchdays ago.
Löw’s assistant coach Marcus Sorg was at the BayArena last weekend for the 5-2 home win for the Werkself against VfB Stuttgart.
Florian Wirtz has been playing for Bayer 04 for just over a year. His development during this time is more than impressive: Joining from the youth set-up at FC Köln, the technically gifted offensive player quickly convinced head coach Peter Bosz of his ability. After nine first team appearances in the 2019/20 season and the departure of Kai Havertz to Chelsea in the summer, the management at Bayer 04 looked to play Wirtz in an attacking midfield role – and the 17-year-old has repaid that confidence with a lot of good performances.
The youngster, born in Pulheim, has made 24 appearances this season. Thanks to his goal against Stuttgart – his seventh this term – Wirtz is the only U18 player to have scored five goals in the Bundesliga. Reason enough for transfermarkt.de to increase the market value of the Werkself player. For last year's winner of the gold Fritz Walter Medal that meant an increase from €24-€45 million. Wirtz is now the most valuable 17-year-old worldwide.
Wirtz is nowhere near the only Leverkusen player whose market value has risen according to recent Bundesliga updates from transfermarkt.de. Central defender Edmond Tapsoba is now worth €40 million (+10 million), the two wingers Moussa Diaby (+ 2 to 38 million) and Leon Bailey (+5.5 to 35 million) have also seen an increase. Other adjustments: Nadiem Amiri (+6 to 22 million), new signing Jeremie Frimpong (+6 to 10 million) and Daley Sinkgraven (+1.5 to 9 million).
The youth players Emrehan Gedikli, Cem Tuna Türkmen and Samed Onur have also been given a market value for the first time in their careers. The 17-year-old centre forward Gedikli is rated at €750,000 and the two 18-year-old midfielders at €400,000.
Last weekend, Moussa Diaby posed huge problems to the Stuttgart defence with his inimitable tempo. The France U21 international provided the assists at 3-1 and 4-1 and thereby played a big part in the 5-2 home win. The games manufacturer EA Sports has rewarded the performance of the Werkself player with a place in the Team of the Week 20 on FIFA Ultimate Team. Congratulations, Moussa.
At the age of 19, Jonathan Tah joined Bayer 04 from Hamburg SV in 2015. Since then, the imposing central defender at the Werkself has developed into a regular starter and he has also played for the national team. 'Jona' is 25 years old today (Thursday). Congratulations on your big day.
The Hamburg-born defender could have a second reason to celebrate this week if he plays against Mainz 05: It would be his 150th Bundesliga appearance for Leverkusen.
Two other former Werkself players celebrate their birthdays on this Thursday. Markus Happe, DFB Cup winner in 1993, is 49 today. Ralf Falkenmayer, UEFA Cup winner in 1988, has his 58th birthday. Bayer 04 wish both many happy returns.
Bayer 04 Leverkusen have appointed Carles Martínez Novell as the new head coach. The 42-year-old Spaniard worked for FC Toulouse in the French Ligue 1 until the end of the season. Martínez finished last term in ninth place with the club from the south of France. He will take over the Werkself on 1 July 2026 and has signed a contract to 30 June 2028. Martínez, whose contract with Toulouse expires at the end of the month, succeeds Kasper Hjulmand at Leverkusen, who is leaving the club after one season.
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Welcome to Leverkusen, Carles Martínez Novell. Bayer 04 have appointed the 42-year-old Spaniard as the new head coach on a contract to 2028. Martínez most recently worked for FC Toulouse in the French Ligue 1 until the end of the season. He previously spent four years at Barcelona's legendary academy La Masia in his home city. Bayer04.de introduces Martínez in more detail.
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Bayer 04 plans for the 2026/27 pre-season continue to take shape. The Werkself will kick off the new season in mid-July with the return to the training ground. The highlight will be the official season opener on 8 August at the BayArena, including a friendly against La Liga club Sevilla. Friendlies in Germany will take the team to neighbouring Monheim, Offenbach and Jena.
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Strengthening the Bayer 04 Leverkusen youth teams: Konstantinos Kotsifakis will join the Werkself from Bundesliga 2 club Hertha Berlin for the 2026/27 season, where he will be a permanent member of the Leverkusen U19 coaching set-up. The German-Greek will also take on an operational role in coaching the Bayer 04 Future Team. The 29-year-old was most recently head coach of the U17s at Hertha Berlin.
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Another award for the Bayer 04 head groundsman and staff: After coming top in the 2021/22, 2022/23 and 2024/25 seasons, the BayArena pitch came second in the Bundesliga Pitch of the Year ranking for the 2025/26 season. VfL Wolfsburg secured the top spot this year, with TSG Hoffenheim in third place.
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