
Jonathan Tah and Co. split up into groups of three for the day working in the Werkstatt, the Bayer 04 rehab and training centre at the BayArena, on a range of tests and checks. That included taking blood and measuring body fat as well hip strength measurements plus different diagnostic procedures to test coordination, mobility and stability.





Before clocking off, the Werkself players underwent spiroergometry to finish off. Wearing respirator masks, the players were put through their paces as they clocked up as many miles as possible on the treadmill to test their stamina levels.






The squad led by head coach Xabi Alonso return to the training ground for the first time on Friday 2 December. The first session with the ball starts at 10.30 CET on training pitches 1 and 2. The Alonso team have a second training session in the afternoon at 14.30 CET.
Both sessions are open to Black and Red fans but last-minute changes are possible.

The German Football Association (DFB) has officially recognised Bayer 04 as a centre for the development of female talent for the 2026/27 season. The club was awarded that role on 1 January 2026, and this status has now been renewed.
Show more
Bayer 04 Leverkusen have sold young defender Andrea Natali to AZ Alkmaar on permanent terms. The 18-year-old Italian was on loan at the Dutch club last season, where he mainly played for the reserve team in the second division.
Show more
Bayer 04 Leverkusen have loaned new signing Luca Erlein to newly promoted FC Energie Cottbus for the 2026/27 season. This will give him the opportunity to play in Bundesliga 2. The club signed the 19-year-old right-back on a permanent basis last week, on a contract to 30 June 2030.
Show more
Trophies as a youth, appearances in the pro game and his first taste of international competition: new arrival Luca Erlein, who has been signed from TSG Hoffenheim, can already look back on some remarkable achievements and moments in his fledgling career. We take a closer look at the 19-year-old right-back, who can also fill other roles across the defensive line.
Show more