
Due to the severity of the injury, an operation is required following the immediate treatment in Columbia. This will be performed by a specialist in Madrid by agreement with Bayer 04, Arias and Atlético. The 28-year-old Arias is expected to fly from Colombia to Spain in the middle of next week.
“This serious injury hits us hard and affects everybody. Santiago is a great character and has joined us with great ambition and it’s a bitter blow for him,” declared sporting director Simon Rolfes. “Like Atlético Madrid, we will do everything we can to support Santiago in his recovery. After the operation and his return to Leverkusen, he will be looked after by us during his rehab. Our medical section and the whole club are behind him so that he can return fully fit as soon as possible.”
“I can’t describe how I feel. I’d be lying if I said I’m doing alright but I don’t want to maintain the opposite. I’m sad about the situation,” Arias said on Instagram on Saturday. “This is another test to overcome and it will make me stronger. I promise to work hard to get back quickly and stronger and be able to wear the colours of Colombia and my club Bayer 04 Leverkusen again.”


In their third friendly of this pre-season, Bayer 04 played on home soil for the first time – and won there too! The Werkself claimed a comfortable 4-0 victory against Belgian top-flight side KRC Genk at the Ulrich-Haberland-Stadion. Jeanuel Belocian (9’) and Nathan Tella (42’) gave a dominant Leverkusen a 2-0 lead at the break, which Afonso Moreira (51’) and Christian Kofane (53’) doubled after the break. Among the many second-half substitutions was Patrik Schick, who made his first friendly appearance of the summer.
Show more
The Werkself are finally back. On Saturday 8 August, Bayer 04 kick off the 2026/27 campaign with their opening match. But there’s far more than just a double-header in store for Werkself supporters. True to the motto ‘One day. Two teams. One club’, the BayArena and the Ulrich Haberland Stadium will be transformed into a world of excitement.
Show more
The Werkself continue their 2026/27 pre-season preparations with their third friendly against Belgian top-flight side KRC Genk at the Ulrich-Haberland-Stadion on Wednesday 29 July (kick-off 15:00 CEST). Werkself-TV is broadcasting the match live and in full in a stream from 14:50 CEST...

After the children from the Bayer 04 Football Academy grilled Janis Blaswich and Simeon Rapsch last week, another group of 20 young Werkself fans gathered at the BayArena press conference room on Tuesday afternoon, 28 July . This time, the kids directed their questions at Tim Oermann and Jonah Berghoff. Defender Oermann raved about his school days, whilst talented midfielder Berghoff revealed to the young footballers, amongst other things, who his favourite player is – and he is also at Bayer 04. To round things off, the pair naturally obliged with all requests for autographs and selfies.
Show more
Bayer 04 are back on the pitch. Following the first training sessions, the Werkself play the first pre-season friendly on Saturday, July 18. The match against Oberliga club Sportfreunde Baumberg kicks off at 15:30 CEST in Monheim am Rhein. Fans unable to attend the match can watch head coach Carles Martínez’s first game in charge for free via a livestream at bayer04.de and on the Bayer 04 app, as well as on Werkself.tv (exclusively for members). Just log on and watch the games live. All the other Werkself preseason friendlies leading up to the 2026/27 season will also be streamed live for free.
Show more