
The 54-year-old, who took Ajax through to the Europa League final against Manchester United in 2017, has signed a contract to 30 June 2020. Bosz will be joined at Leverkusen by his assistant coach Hendrik 'Hendrie' Krüzen.
"Heiko Herrlich gave our team an important boost last year after a very difficult season and he took us into Europe. We were convinced and determined to turn the corner with him as head coach. Unfortunately, there has been an undeniable stagnation in the development of the team. Even though we are within reach of the European positions at the end of the year we find ourselves in a situation after a less than satisfactory first half of the season that makes a change of coach essential from our point of view," said Rudi Völler as sporting managing director in explaining the decision.
"With Peter Bosz as manager we want to get back to meeting our ambitious targets as quickly as possible," declared the Bayer 04 chairman Fernando Carro. "Of course, that is also down to the players. They have to consistently show their undoubted ability, which unfortunately has rarely been evident over the past six months."
In the view of Bayer 04 sporting director Simon Rolfes, Peter Bosz wants to play "Attacking, high tempo and exciting football. He has always demonstrated particular passion in working with young players wherever he has coached. Therefore, Peter is an excellent fit here with us as we have placed great emphasis on developing highly talented youth players and bringing them through to the top level in a balanced combination with experienced pros for many years. Our team will benefit from having Peter Bosz as our coach," declared Rolfes. "Particularly at Ajax, he demonstrated he can improve young players, build teams and also compete on the European stage."

Bayer 04 are away to Croatian champions Dinamo Zagreb on Matchday 5 of the league phase of the 2026/27 UEFA Europa League. The game kicks off on Thursday 26 November at 18:45 CET at the Maksimir Stadium. All the information on ticket sales.
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It wasn’t just on the pitch that there was cause for celebration around the Werkself’s 2–1 home win against SC Freiburg. Plenty of happy faces could be seen near the dugouts at half-time too. Once again, CEO Fernando Carro, alongside former striker and club ambassador Stefan Kießling, paid tribute to eight supporters’ clubs celebrating up to their 30th anniversary on behalf of Bayer 04.
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A disciplined and impressive team performance secured a 2–1 victory for the Werkself against league leaders SC Freiburg, who had remained unbeaten across all competitions until then; two players once again stood out at the BayArena: Artisic dribbler Ibrahim Maza scored Leverkusen’s first goal himself and set up the second, whilst goal-getter Patrik Schick had set up the equaliser and netted the winner. In doing so, the Czechia international set a remarkable club record. Both head coach Carles Martínez and the media were full of praise afterwards. Maza himself was also delighted with the growing rapport with “super striker” Schick: “The more we play together, the better we understand each other.” The Werkself’s comeback secured their fourth home win in their fourth home game of the season.
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Werkself TV shows the highlights of Bayer 04's 2-1 win at SC Freiburg on Matchday 6 of the 2026/27 Bundesliga season...
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He’s done it: Patrik Schick also found the back of the net in Bayer 04’s 2–1 win over SC Freiburg on Matchday six of the 2026/27 Bundesliga season – a club record! In what was a high-quality match from the word go, the Werkself were briefly rattled by the visitors’ opener from Derry Scherhant in the 14th minute but fought back with an equaliser from Ibrahim Maza just six minutes later. In the second half, the Black and Reds took control on their home turf and secured a well-earned win through record-holder Schick. In doing do, the Werkself inflicted the first defeat of the season on the club from the Black Forest.
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