
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 ended the year with a 3-1 win away at RB Leipzig and will go into 2026 in third place in the Bundesliga table, leapfrogging their opponents, who had previously not dropped a point at the Red Bull Arena this season. Martin Terrier and Patrik Schick scored to turn around a first-half deficit before Montrell Culbreath rounded things off with a goal on his senior debut deep into added time. Ezequiel Fernández, Axel Tape and Lucas Vázquez also all returned from injury.
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Bayer 04 are away at RB Leipzig for their final fixture of 2025 in the Bundesliga on Saturday (kick-off: 18:30 CET). Here’s all you need to know ahead of the Matchday 15 encounter at the Red Bull Arena.
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Despite a major personnel shake-up in the summer, RB Leipzig have performed impressively this term. Ahead of matchday 15, coach Ole Werner's team are second in the Bundesliga with a three-point lead over their upcoming opponents Bayer 04. This Saturday, 20 December (kick-off: 18:30 CET), the Werkself are away to RBL who are strong at home. The lowdown on our next opponents.
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Bayer 04's final game of the year at RB Leipzig on Saturday night, 20 December (kick-off: 18:30 CET), will also see Robert Andrich and David Raum go head-to-head. In an interview with bayer04.de and rbleipzig.com, the two team captains spoke about the importance of this match, their friendship and a WhatsApp group with Joshua Kimmich.
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