The Dutchman and his players had to cope with freezing temperatures during this week's training sessions. "I asked the players and also my coaching staff to keep on moving a lot," said Peter Bosz at the pre-match press conference on Friday with a smile. "That's why the temperature wasn't a problem for us. And it was even very nice in the sunshine."
The 57-year-old was able to welcome Nadiem Amiri back to the training ground this week. The Germany international completed his period of self-isolation following a positive coronavirus test. But Bosz was unwilling to reveal whether the 24-year-old would be in the starting eleven on Saturday. The Dutchman is just happy to have another alternative in offensive midfield ahead of the busy run of fixtures coming up.
Kerem Demirbay has recently played in the position of the sidelined Amiri – and he knew how to impress with his commitment and goal threat. The 27-year-old netted a brace against Stuttgart. Bosz on the left-footer: "Kerem is doing a good job. I particularly like the fact he never complains but always works really hard. In his position you have to score goals – and he's done that. Therefore I'm happy with his development."
The head coach can be equally happy with the performances of the 17-year-old Florian Wirtz. The youngster has been really impressive in the centre of the park for several weeks and he made it 4-2 against VfB Stuttgart with a header – with the Germany assistant coach Marcus Sorg looking on. This Saturday against Mainz 05 sees Germany coach Joachim Löw visit the BayArena. In answer to the question whether he would advise Löw to call up his youngster, Bosz responded with the following words: "Löw will be watching several players. But I can understand why he's also coming to see Florian Wirtz. He's producing consistent performances and has quality."
Like the Werkself, the visitors from Mainz were also able to win their last Bundesliga fixture. FSV picked up the second win in their last three matches with a 1-0 victory over Union Berlin thanks to a penalty from Moussa Niakhaté. Before that, they beat RB Leipzig 3-2.
Mainz are on the rise since the change of coaches with the former Mainz player Bo Svensson now at the helm. The team from Rhinehessen are still in 17th place in the table but the gap to safety has now shrunk to four points under the leadership of the Dane. "They are playing well and getting results. That helps to build confidence," declared Bosz. In spite of the convincing performances by the next opponents, the Werkself will be looking to "continue riding the rollercoaster" against the reinvigorated Mainz team.
Match information:
Broadcasters: Sky and Werks11 Radio
Referee: The match officials will be announced on the day of the game

Bayer 04 have fond memories of their encounters with Heidenheim, including a resounding 6-0 win in the reverse fixture. Kasper Hjulmand’s side would very much like to produce a similarly clinical display as they now head to the Voith-Arena for Matchday 27 on Saturday (15:30 CET). But they come up against a team fighting for their Bundesliga lives at the bottom of the table, 10 points adrift of safety with time running out. Here’s all you need to know ahead of the game in our matchday news.
Show more
The Bayer 04 Women welcome FC Carl Zeiss Jena to the Ulrich Haberland Stadium on Sunday night in a white retro look - and in a unique Bayer 04 ‘50 Years of Fan Clubs’ special edition jersey. In sporting terms, head coach Roberto Pätzold's team will face the Bundesliga's bottom team at 18:30 CET looking to keep their chances of third place in the table alive with six games left to play.
Show more
Bayer 04 return to Bundesliga action this weekend. Following their elimination in the Round of 16 of the UEFA Champions League, the Werkself are away to FC Heidenheim 1846 on Saturday, 21 March (kick-off: 15:30 CET) on Bundesliga matchday 27. Ahead of the clash in the eastern Swabian Alps, head coach Kasper Hjulmand spoke about the importance of the fixture and the chances of qualifying for the Champions League next term.
Show more
A quick look at the table shows the situation at FC Heidenheim is serious. The Bundesliga bottom club are already ten points behind the play-off spot with their backs to the wall in sporting terms. With eight games left to play, avoiding relegation appears to be a mission impossible. Nevertheless, they are far from flying the white flag at the Schlossberg ahead of the clash with the Werkself this Saturday, 21 March (kick-off: 15:30 CET). The lowdown on our next opponents.
Show more
Bayer 04 Leverkusen will have to manage without the two strikers in the immediate future. Caroline Kehrer suffered a torn ligament in her right knee and Amy Wrigge tore her cruciate ligament.
Show more