
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.

The United Nations International Day of Persons with Disabilities (IDPD) is celebrated worldwide on 3 December. Together with Bayer AG, Bayer 04 is once again setting an example for diversity and inclusion by lighting up the BayArena in purple in the evening.
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For the second time in four days, Bayer 04 face Borussia Dortmund this Tuesday evening, 2 December (kick-off: 21:00 CET) - this time in the round of 16 of the DFB Pokal, with more than 7,000 fans supporting the Werkself at Signal Iduna Park. After the recent 2-1 defeat to BVB in the league, several cup stats provide hope of revenge for the Black and Reds. There are several reasons why Bayer 04 recommends getting to the round of 16 clash early, in which VAR will be in use, unlike in the previous rounds. Read on for further information on tonight’s game in our matchday news.
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Just three days on from the Bundesliga meeting in Leverkusen, Bayer 04 now visit Borussia Dortmund in the DFB Pokal on Tuesday (21:00 CET). Ahead of the game at the Signal Iduna Park, head coach Kasper Hjulmand spoke about how to approach this second encounter in 72 hours and a number of developments within the squad.
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Werkself TV shows the highlights of Bayer 04's 2-1 loss to Borussia Dortmund on Matchday 12 of the 2025/26 Bundesliga season...