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.
Jarell Quansah and Alejandro Grimaldo speak to Werkself-TV following Bayer 04's 4-1 defeat to VfB Stuttgart on Bundesliga Matchday 16...
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Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
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Werkself TV shows the highlights of Bayer 04's 1-4 loss against VfB Stuttgart on Matchday 16 of the 2025/26 Bundesliga season...
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The Werkself began 2026 with defeat, losing 4-1 at home to VfB Stuttgart on Matchday 16 of the 2025/26 Bundesliga. Jamie Leweling opened the scoring early, with Maximilian Mittelstädt making it 2-0 from a penalty before Leweling again and Deniz Undav increased the lead to 4-0 just before half-time. Alejandro Grimaldo's penalty reduced the deficit midway through the second period.
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