
"Sandra has primarily impressed us with her attitude, discipline and mentality. She lives for football and has developed really well over the past few months. She is a very positive character and an absolute team player. We are all very happy that Sandra will continue to be part of our team," said head coach Achim Feifel on the decision of the 25 year-old to stay.
Jessen started playing for the Werkself Women in the second half of the 2015/16 season. The midfielder returned to Leverkusen during the winter break in 2018/19. Since returning she has played 29 games and scored two goals.

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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