
“After playing for Turbine Potsdam and most recently in England, Caroline Siems joins our team as a young but very experienced full-back,” said Bayer 04 head coach Achim Feifel. “She has enormous potential. And we hope she can provide lots of positive input with her dynamic and attacking style of play.”
Siems, who has played for all Germany junior teams up to the U19s, is looking forward, “to returning to the Bundesliga. Discussions with the Bayer 04 management and the conditions here have convinced me that I can best develop at Leverkusen both on and off the pitch. I’m very excited about the years ahead.”
The defender played for Turbine Potsdam from 2015 to 2020 before moving abroad to Aston Villa last year. Siems made 14 appearances for the Villa Women last term.

Whether it's the Lions Club, Teens, Bayer 04 Club or Silver Lions - there was a lot going on again this year in all age-specific members' clubs. We look back on an eventful year with numerous events and many exclusive moments with the Werkself. We take a look at what the year 2025 had to offer for the members of the Bayer 04 Club...
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Bayer 04 host 1. FC Köln at the BayArena in the final home game of 2025 . Today’s match on Saturday, 13 December kicks off at 18:30.30 pm. The Werkself are looking for three points against 1. FC Köln, who are without a win in four games but they do have a shooting star in their ranks up front. The Bayer 04 Volunteering Award will be presented at the derby against the club from Cologne and another fan club will be honoured for many years of loyalty under the Cross. The matchday news.
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The German Football Association (DFB) has officially recognised Bayer 04 as a women’s talent support centre. As announced by the DFB, 1 FC Köln, Union Berlin, RB Leipzig and Hamburger SV are also certified as performance or talent support centres from 1 January 2026 in addition to the Werkself.
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Werkself-TV shows the highlights of the Bayer 04 women's 0-1 loss at Werder Bremen on the 13th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
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