
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.

Edmond Tapsoba has signed an early extension to his contract with Bayer 04 Leverkusen. With two years left on his current deal, the 27-year-old Burkina Faso international has extended his contract until 30 June 2031. The centre-back joined as a young talent from Portuguese top-flight club Vitoria Guimaraes at the start of 2020.
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A special surprise: during the preview for the 'Fierté Burkinabè' documentary about Edmond Tapsoba, Bayer 04 directors Fernando Carro and Simon Rolfes announced Tapsoba's contract extension until 2031 together with the centre-back. He then spoke to Werkself-TV about his time in Leverkusen so far and future ambitions...
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This evening was deeply moving: At a really special setting, Bayer 04 exclusively presented the specially produced documentary ‘Fierté Burkinabè’ ("Burkinabe Pride") about Edmond Tapsoba on Tuesday. For the preview at the BayArena, the parents of the Werkself player and other close companions travelled all the way from his African homeland Burkina Faso. The 45-minute film shows Tapsoba's extraordinary career from his beginnings in Ouagadougou to Leverkusen as well as the work of his foundation "Fondation Edmond Tapsoba", with representatives from Burkina Faso also present. Fans can watch the documentary free of charge on Werkself TV and YouTube from Wednesday night at 20:00 CEST.
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Bayer 04 have signed left-back Carolin Simon from champions Bayern Munich for the coming season. The 33-year-old former Germany international, who played for Leverkusen from 2013 to 2016, has signed a contract to 30 June 2028.
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Bayer 04 Women have strengthened for the coming season with the signing of Lobke Loone. The 23-year-old Dutch striker joins from Utrecht on a contract until 30 June 2028.
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