
"We have signed a very experienced player in Santiago Arias who will quickly be able to help us," declared the sporting managing director Rudi Völler."This transfer is important for the structure of our team due to the large number of fixtures over the coming weeks."
Bayer 04 sporting director Simon Rolfes has worked hard over recent weeks to bring in Arias and he sees in the Colombian a player, "who has proved himself at a top European club. The quality of the Spanish league is well known," said Rolfes, "as is Atlético Madrid's. Santiago will be a key player in our team with his footballing ability and his mentality.”
For the right-footer, who will wear the number two shirt for the Werkself, the move to Germany is "a fantastic opportunity to take on a new challenge after two great and successful years in Madrid. Bayer 04 Leverkusen are one of the best clubs in the Bundesliga with a very good reputation in Spain. I experienced how football's played here with Atlético in the Champions League," Arias explained. "That's why I'm very much looking forward to the German league and my new teammates. We have a team that can go a long way – and I want to help achieve that."

Four Bayer 04 players are in action at the 35th edition of the Africa Cup of Nations being played in Morocco from 21 December to 18 January 2026: Eliesse Ben Seghir for the hosts, Edmond Tapsoba with Burkina Faso, Ibrahim Maza for Algeria and Christian Kofane with Cameroon. Updates on the AFCON matches involving Werkself players...
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Sustainability once again had many faces at Bayer 04 in 2025: In community activity, the club supported countless regional campaigns, including the Leverkusener Tafel, the Frauenennotruf Leverkusen e.V. and the homeless aid organisation "Kältegang". But the Black and Reds have also been involved in good causes around the world - including the Young Coaches training programmes in Uganda and Ecuador plus the Genuine World Cup in the USA, where the Inclusion Werkself competed. Bayer 04 was also fully committed to the environment and underwent external and independently certification in accordance with the European environmental management standard EMAS, for example, to analyse and optimise the club’s environmental efforts. Looking back at sustainability in 2025.
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Two Saturdays, one Friday and one Sunday: The dates for the Bayer 04 Women's team games on matchdays 16 to 19 have been finalised. Three of the four matches scheduled by the German Football Association (DFB) on Tuesday will be played at home at the Ulrich Haberland Stadium.
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Bayer 04 currently have a number of promising young talents on loan to various clubs in Europe with the aim of gaining match practice and furthering their individual development. Francis Onyeka and Farid Alfa-Ruprecht, for example, play for VfL Bochum 1848, while Artem Stepanov is a striker with 1. FC Nürnberg, coached by World Cup winner Miroslav Klose. Tim Oermann is a defender in the Austrian Bundesliga at top club SK Sturm Graz and Abdoulaye Faye is playing in France for FC Lorient, promoted to Ligue 1 this season. Bayer04.de reviews the first six months for the Leverkusen players out on loan.
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