
It does help that Bosz had all his players available again with the exception of long-term injuries Joel Pohjanpalo (rehab training after ankle injury) and Panos Retsos (rehab after muscle tendon injury to thigh) after Charles Aránguiz and Leon Bailey missed the first training session on Friday. The duo rejoined their team-mates on the training ground for the Sunday morning session.
While the 28-year-old Chilean only had his first session under the new head coach on Sunday due to private reasons, Bailey did train with the squad on Saturday after the Jamaican sat out the full training session on Friday. According to Bosz, the 21-year-old was feeling the effects of a long flight and suffering somewhat from the air conditioning. Therefore the decision was to take the precaution of Bailey returning to full training a day later.
The main focus for Bosz in the first few days is the improvement of fitness levels. "We've been working on stamina – albeit with the ball," said the Dutchman on Sunday. Using the ball is always important for him. Of equal significance for the 55 year-old: when the session on the training ground begins at 10.30 CET and it starts with 'football training': positional play, passing drills, tactical work etc. The warm-up routine is down to the players themselves – but obviously with the help of the fitness coaches. Either in the facilities at the BayArena or on the training ground.
One player completed his Sunday training in the gym. Karim Bellarabi had a slight problem with his back and had to work on his own. The 28 year-old should rejoin the rest of the Werkself squad on the training ground on Monday (14.30 CET).

Video game producer Electronic Arts (EA) has announced the nominees for the Men's and Women's Team of the Year (TOTY) for EA Sports FC 26. With Patrik Schick and Alejandro Grimaldo for the men and Vanessa Fudalla for the women, there are three Bayer 04 players included. Fans of the Black-and-Reds can vote for each top XI of 2025 from now until 18:59 CET on Monday 12 January.
Show more
The Werkself host Mainz at the BayArena on matchday 24 in the 2025/26 Bundesliga season. The match is on Saturday, 28 February, at 15:30 CET. Information on ticket sales.
Show more
The long-standing successful collaboration between Bayer 04 and the transport service provider wupsi GmbH has been expanded: From January 2026, 100 wupsi bikes with Bayer 04 branding will be available for hire throughout the city of Leverkusen. They will complement the many existing offers and services that provide key support, especially for fans travelling to and from home matches at the BayArena.
Show more
The Werkself are back! Following the two-week winter break, head coach Kasper Hjulmand's team began the new year with an open session on Sunday. After Robert Andrich and his teammates arrived in Leverkusen yesterday for the official check-in, they got back down to business a day later in front of around 1,200 fans at the Ulrich Haberland Stadion. The report from the Werkself's first session of 2026.
Show more