
There was a change of personnel at the hosts at the start of the season: The club management at Mainz opted to change coaches after the second Bundesliga matchday. Achim Beierlorzer had to go after two defeats in the opening games and assistant coach Jan-Moritz Lichte took over the helm at Mainz 05. The former Werkself assistant coach under Sascha Lewandowski and Sami Hyypiä is looking to get the team back to winning ways – his opposite number Bosz obviously has something to say about that. Mainz have a lot of quality in their squad. It’s down to us to see that it takes another week before that is evident on the pitch,” the Dutchman declared.
In addition to Paulinho, who continues his rehab training following his torn cruciate, Bosz will have to manage without other players following the international break: Summer signing Santiago Arias suffered a broken leg and complex ligament damage to his ankle in a World Cup qualifier with Colombia and is set to be out of action for around six months.
The 56-year-old will also be without the services of Patrik Schick, who is struggling with a muscle injury. With Florian Wirtz, who was substituted in the middle of the first half of the Euro qualifier for the Germany U21s against Bosnia-Herzegovina, there is no evidence of a structural injury to his stomach muscles. The 17-year-old is already on the road to recovery. “But he probably won’t be available for us against Mainz,” said Bosz
In addition, Tin Jedvaj will also most probably have to miss out. The defender was not in the squad for Croatia’s 2-1 defeat against France on Wednesday night due to illness. The results of a coronavirus test proved to be negative and Jedvaj is now feeling better again.
In accordance with the regulations, the players returning from international duty undertook coronavirus tests at the BayArena on Thursday morning. Another round of tests will be performed on Friday morning. If the results are negative then the players can then take part in training and join the Bayer 04 group to travel to Mainz to hopefully play on Saturday and help secure the sixth Bundesliga win in succession against Mainz 05.
Match information:
Broadcasters: Sky and Werks11 Radio (bayer04.de)
Referee: The match officials will be announced on the day the game
Attendance: 250

The Werkself will host VfB Stuttgart at the BayArena on matchday 16 of the 2025/26 Bundesliga season. The game is on Saturday, 10 January, at 18:30 CET. Information on ticket sales.
Show more
The Werkself will host Werder Bremen at the BayArena on matchday 19 of the 2025/26 Bundesliga season. The game is on Saturday, 24 January, at 15:30 CET. Information on ticket sales.
Show more
The next opponents in the 2025/26 DFB Pokal have been announced: Bayer 04 will host Bundesliga rivals FC St. Pauli in the quarter-finals. That was the outcome of the draw held this Sunday evening, 7 December, at the German Football Museum in Dortmund, where long-time Bundesliga player and coach Friedhelm Funkel made the draw. The Werkself will play their quarter-final tie on 3-4 or 10-11 February 2026. The exact dates have yet to be finalised.
Show more
After falling behind early on, Bayer 04 took control of the game against a combative and disciplined FC Augsburg on Saturday afternoon. However, they lacked the necessary precision in finishing and hit the post and crossbar three times. After the game, coach Kasper Hjulmand said he wanted to get back to the "right philosophy" of previous matches with three games left in 2025. The Werkself review.
Show more
Bayer 04 were beaten 2-0 away at Augsburg on Matchday 13 in the Bundesliga. The Werkself had the majority of the ball but fell behind early to Dimitrios Giannoulis and then Anton Kade inside the first half an hour. Despite an attempted fightback in the second half and striking the frame of the goal three times, Leverkusen were left empty handed.
Show more