
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."

“Diaby! Diaby! Diaby!” was the cry around the BayArena as the Werkself danced in front of the north stand following their 4-0 win over Union Berlin. Captain Edmond Tapsoba gave his new (and old) teammate a friendly shove forward to take in the acclaim from the fans. The returning Frenchman was typically reserved in thanking the supporters but was clearly emotional about what was happening.
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The Bundesliga is back at the BayArena this Saturday as Bayer 04 play their first home game of the 2026/27 campaign against Union Berlin (15:30 CEST). Moussa Diaby could make his second debut for the Werkself following his return to Leverkusen – and it would be an ideal fixture for the Frenchman. Here’s all you need to know ahead of the encounter in our matchday news.
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Werkself-TV shows the highlights of the Bayer 04 women's 2-1 at TSG Hoffenheim on the 3rd matchday of the Google Pixel Women's Bundesliga 2026/27.
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Paulina Tomasiak’s maiden Bundesliga goal helped Bayer 04 Women to their second away victory of the 2026/27 Google Pixel Bundesliga as Roberto Pätzold’s side won 2-1 at Hoffenheim on Matchday 3. Loreen Bender had scored inside two minutes on Friday evening before the hosts levelled, but Tomasiak came off the bench to secure all three points at the Dietmar-Hopp-Stadion.
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