
The 23-year-old joined the Werkself in 2014 and he made 215 appearances for Bayer 04. "Julian joined us as a 17-year-old at a time when he was sought after by a lot of clubs but he opted to play for us and he has developed wonderfully since then making his international debut during his time in Leverkusen," said sporting managing director Rudi Völler. "With him, our approach of bringing through young, highly talented players early at a top level, achieving a lot with them and thereby significantly increasing their transfer value worked out too. We would have liked to have held onto him a bit longer," declared Völler, "but with the signing of Kerem Demirbay from Hoffenheim we have already found a suitable replacement."
Bayer 04 sporting director Simon Rolfes said, "Over the past few months, Julian has matured into a top player in a different position under coach Peter Bosz. Now he has decided to play somewhere else after five and a half years. We have already reacted to that in terms of personnel," said Rolfes. "And we will continue to strengthen our squad to maintain our competitiveness next season."

Werkself-TV shows the highlights of the Bayer 04 women's 0-1 loss against TSG Hoffenheim on the 19th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
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A proud anniversary: 2026 marks the 50th anniversary of the founding of the first Bayer 04 official fan club. The pioneers of the "First fan club 1976 Leverkusen" still hold their love for the club dear, black and red passion knows no expiry date. Read on to discover the development of organised fan culture at Bayer 04 and where it is practised around the country and the world.
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After a run of seven games unbeaten in all competitions, the Werkself suffered a 1-0 defeat at FC Union Berlin despite their best efforts. Captain Robert Andrich, who took responsibility for the goal, said after the match: "Now we have to focus on not losing our heads even in difficult situations. That has always made us strong in the past." The Werkself review.
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Werkself TV shows the highlights of Bayer 04's 0-1 loss at Union Berlin on Matchday 23 of the 2025/26 Bundesliga season...