
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.

At the U19 European Championship in Wales, the Germany U19 national team lost their third and final group match 4-0 to Spain. Several regulars, including Bayer 04 players Montrell Culbreath and Francis Onyeka (on loan to SV Elversberg), who had combined for four goals and assists in the two previous victories, did not feature,. Germany had already secured their place in the semi-finals with a game to spare.
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The FIFA World Cup 2026 in the USA, Canada and Mexico is underway. A total of eight Leverkusen players are taking part in the 23rd World Cup, with 48 teams in the tournament for the first time. Bayer04.de brings you all the latest from Werkself players at the World Cup.
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At the end of June, Bayer 04 became the first team in the Google Pixel Women’s Bundesliga to begin their pre-season preparations. As well as training sessions at the Kurtekotten facility, the players under coach Roberto Pätzold completed the customary series of performance diagnostics. Werkself-TV presents exclusive insights and player interviews from the first few days after the summer break.
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The German Football League (DFL) has published the full fixture list for the 2026/27 Bundesliga season. Following Bayer 04's previously announced opening match away to newly-promoted SV 07 Elversberg, the Werkself's first home match of the new league season is against 1. FC Union Berlin. The 34th and final Bundesliga fixture is on 22 May 2027 at 15:30 CEST away to last season's Bundesliga 2 champions Schalke 04.
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