
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 Bayer 04 Women's 2-0 win against Hamburger SV on Matchday 9 of the 2026/27 Google Pixel Women's Bundesliga.
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1. FC Köln host Bayer 04 on Sunday 8 November (kick-off 15:30 CET) in the 75th Bundesliga derby between the Rhineland neighbours. The lowdown on our next opponents.
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The Werkself have the chance to end an intense run of fixtures with a derby victory as they visit Köln on Sunday ahead of the international break. Head coach Carles Martínez spoke on Friday at his press conference about the attributes his team needs and the support of the fans.
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After back-to-back away defeats, Bayer 04 Women now face their penultimate home fixture of 2026 as they welcome Hamburg to the Ulrich-Haberland-Stadion on Saturday (14:00 CET) seeking three important points in the Google Pixel Bundesliga.
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It was a UEFA Europa League fixture that came down to fine margins as Bayer 04 ultimately ended up on the wrong side of a one-goal game at home to Marseille on Thursday – the Werkself’s first loss of the European campaign. However, Leverkusen are still well on track to reach the knockout rounds with nine points on the board at the league phase’s halfway stage. Still, Carles Martínez and his team want to learn from the loss heading into Sunday’s Bundesliga derby at Köln.
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