
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."

Carolin Simon is the new captain of the Bayer 04 women’s team. The full-back, who joined from Bayern Munich in the summer, will take over the captain’s armband for the 2026/27 season. Simon returned to Leverkusen in the summer after ten years away. The 33-year-old succeeds goalkeeper Friederike Repohl, who retired at the end of last season.
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Farid Alfa-Ruprecht is going out on loan from Bayer 04 Leverkusen to Bundesliga 2 side Hertha Berlin. The pacy winger will be at the Berlin club for one year.
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Heading towards the competitive start of the 2026/27 season together: the Werkself kicked off preparations for the DFB Pokal clash at third-tier SV Wehen Wiesbaden with an open session in front of their fans on Tuesday morning. Before the first-round tie on Saturday 22 August at 13:00 CEST - for which the away section is already sold out - there'll be one more open session on Thursday from 11:00 CEST, when fans have another chance to watch head coach Carles Martínez's men at work.
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Bayer 04 host RB Leipzig at the BayArena on matchday 4 of the 2026/27 Bundesliga season. The game is on Sunday 20 September with the kick-off at 15:30 CEST. The latest information on ticket sales.
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