
“Caro is a real team player, who’s appreciated by everyone. She’s battled back time and time again from difficult periods during her time with us,” said sporting director Achim Feifel. “After three years, she’s now seeking a new challenge in Bremen. We wish her all the best for her future career.”
Siems joined Leverkusen in summer 2021 from English Women’s Super League club Aston Villa, going on to make 40 competitive appearances (three goals). All 12 of Siems’ appearances this season have come in the Bundesliga, with six of them starts. The former Germany youth international previously played at Turbine Potsdam between 2015 and 2020, including three years in the Bundesliga.
“It wasn’t an easy decision for me, but I feel ready for a new step,” said Siems. “I had three great and eventful years full of valuable experiences. Also at the times when things weren’t going well, I was always able to count on the support of the club, the team and the backroom staff.”

The fourth European away trip of the season in the UEFA Champions League 2025/26 takes the Werkself to the Greek capital. Head coach Kasper Hjulmand's team are away to Greek double winners Olympiacos on matchday seven in the UCL league phase. The match at the Karaiskakis Stadium is on Tuesday, 20 January (kick-off: 21:00 CET). We'll be taking you on a trip to Athens and reporting on the Werkself close-up...
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A great honour for Bayer 04 Women's German international: as part of the 2025 Sports Awards, Carlotta Wamser entered her name into the City of Leverkusen's Golden Book. On Tuesday, she looked back on a special year in a talk in the Morsbroich Castle hall of mirrors.
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It was a disappointing night in Athens: The Werkself lost 2-0 away to Olympiacos on Matchday 7 in the league phase of the 2025/26 UEFA Champions League campaign. In a match that was intense and fiery from the outset, the high-pressing home side made the better start and took the lead through Costinha on two minutes. Although the Werkself had a number of chances to equalise, the clinical Greek side increased the lead to 2-0 shortly before half-time (45+1’). In the second half, Leverkusen once again gave their all and showed total commitment but, despite their best efforts, the Black and Reds were unable to break down the Olympiacos defence on the night.
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Bayer 04 Leverkusen have agreed a loan deal with Bundesliga club Borussia Mönchengladbach for Argentinian striker Alejo Sarco. The 20-year-old joins Mönchengladbach with immediate effect for the rest of the season.
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The Werkself are away to Greek double winners Olympiacos on matchday 7 in the league phase of the 2025/26 UEFA Champions League campaign. Tonight, 20 January (kick-off: 22:00 local time/21:00 CET), Bayer 04 will not only face a familiar face in Panagiotis Retsos, but also an experienced and successful team in their Greek top-flight opponents. The Olympiacos midfield and forward line in particular are peppered with seasoned veterans from top European clubs - but even they will first have to find solutions against the Werkself defence that has recently performed with aplomb in the UCL. The matchday news.
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