
The 18-year-old has worn the Black and Red shirt since 2013 and he has made 16 appearances for the Bayer 04 U19s in the current U19 Bundesliga West campaign. He has also been very much in demand with the Germany youth teams. Boller (pictured above in the middle with Lucas Alario and Sam Schreck in the game at Heidenheim) has earned 15 caps for the Germany U17 team and he was a first choice in central defence at the 2017 European Championships in Croatia as well as the World Cup in the same year in India. He played alongside Kai Havertz in the Bayer 04 U17s in 2016 when they won the Germany U17 championships with a 2-0 victory over Borussia Dortmund in the final.

Bayer 04 will have to manage without forward Moussa Diaby for their upcoming matches. The 27-year-old Frenchman sustained a thigh injury in the 3-0 defeat against TSG Hoffenheim yesterday afternoon, Sunday 25 October. Diaby is expected to be available again after the international break in November.
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It has been a long time since feeling what it’s like to come away empty-handed. The last – and so far only – defeat of the season, in Elversberg, was two months ago. Since then, Bayer 04 have followed that up with seven wins and a draw. Now it has happened again away to TSG Hoffenheim. As the match progressed, the Werkself grew in confidence and “could even have scored the opening goal”, as Robert Andrich said after the game. In the end, it was the side from Sinsheim who sealed a 3–0 victory after “hectic closing stages” (kicker). The Werkself review.
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Werkself-TV shows the highlights of Bayer 04 Women's 0-2 loss at 1. FC Nürnberg on Matchday 8 of the 2026/27 Google Pixel Women's Bundesliga.
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Werkself TV shows the highlights of Bayer 04's 0-3 loss at TSG Hoffenheim on Matchday 7 of the 2026/27 Bundesliga season...
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