
“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.

Trophies as a youth, appearances in the pro game and his first taste of international competition: new arrival Luca Erlein, who has been signed from TSG Hoffenheim and is set to go out on loan to Bundesliga 2 newcomers Energie Cottbus for the coming season, can already look back on some remarkable achievements and moments in his fledgling career. We take a closer look at the 19-year-old right-back, who can also fill other roles across the defensive line.
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Bayer 04 Leverkusen has a new coffee partner. The club has agreed a long-term partnership with the Bocholt-based roastery Imping, running to 30 June 2031. The exclusive partnership with the family-run business includes the installation of fully automatic coffee machines at the BayArena, as well as the right to supply and serve coffee products in the business areas during Werkself home games.
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Plenty going on both on and off the pitch: The Bayer 04 fan support team has organised a number of highlights for fans visiting the Werkself 2026/27 summer training camp in Blankenhain, in the Weimarer Land region. Registration for the events is now open. All the details at a glance.
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The Bayer 04 Leverkusen Women’s team and s2-Software are continuing their long-term partnership: The Werkself and the provider of pre-owned Microsoft licences have extended their contract by two years to 2028. This means s2-Software will remain the Bayer 04 sleeve sponsor for all matches in the Google Pixel Women’s Bundesliga.
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BIOGENA is the new performance partner for the Bayer 04 Leverkusen Women’s team. Under a partnership initially set to run for three years, the club and the leading Austrian micronutrient company are pooling their expertise in the areas of health, fitness and top-level performance.
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