
At the same time, the Werkself have loaned out Panagiotis Retsos to the Premier League club Sheffield United to the end of the season. The versatile defender Retsos has a contract at Bayer 04 to 30 June 2022.
"Edmond Tapsoba was a regular first choice at Guimaraes at the age of 20 and in addition to his defensive ability, he’s also dangerous in front of goal," said Bayer 04 sporting director Simon Rolfes in commenting on the signing of the 1.92 metre tall defender. Tapsoba has made 32 appearances for the Portuguese side this season, scoring eight goals including three in the Europa League. And sporting managing director Rudi Völler added: "His really big potential makes Edmond Tapsoba a very interesting proposition as a player. We are happy we've been able to complete this transfer."
The signing of Tapsoba enabled Retsos to go out on loan: "Panos has lost a whole year through injuries and it's important for him to play now. The Premier League club Sheffield United offer the highest level for him to get back to top form," said Völler.

Bayer 04 Leverkusen have extended the contract with full-back Arthur ahead of schedule. The Werkself have agreed a new deal with the Brazilian to 30 June 2031. The 23-year-old was previously under contract to the summer of 2028.
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Bayer 04 Leverkusen continue building the squad for the new season in the Google Pixel Women's Bundesliga. The 25-year-old midfielder Marlene Müller has joined the club from RB Leipzig on a contract to 30 June 2028.
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Bayer 04 are introducing changes to the ticket price structure for the 2026/27 season. In addition to adjusting the ticket prices, the ticket categories will also be reorganised. All season ticket holders have already been informed of the changes by e-mail. The most important information at a glance.
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Ibrahim Maza joined Bayer 04 from Hertha Berlin in the summer of 2025. The youngster from Berlin developed into a difference-maker in his first season with the Werkself. Find out what makes the highly talented player tick in this very personal interview. Among other things, Maza talks about his Algerian-Vietnamese-German home, the role of his family and the importance of Islam for him both in his private life and in football...
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Talking to each other instead of about each other - that was the motto of the ‘Stadiontalk’ on Monday in the BayArena. Representatives from Bayer 04 and other companies, politicians and trainees from the region came together to discuss the career prospects for young people as well as existing challenges and hurdles.
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