
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 U19 goalkeeper Simeon Rapsch. The Germany youth international goalkeeper has signed a long-term contract with the Werkself running to 30 June 2029. The 18-year-old joined Leverkusen from FC Viktoria Köln in the summer of 2024.
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Ken Izekor is leaving Bayer 04 Leverkusen to join third-tier side Alemannia Aachen with immediate effect. The 19-year-old centre-forward joined the club from Alemannia in 2018, and Izekor is now returning to his hometown.
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The Golden Boy Top 100 traditionally lists Europe’s most promising young players. In the latest update, published to mark the start of the new season, four current Werkself players – alongside loanee Francis Onyeka – feature on the list. This means Bayer 04 have the most players in contention of any Bundesliga club.
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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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