
The goalkeepers Lennart Grill and Niklas Lomb plus homegrown player Emrehan Gedikli formed the first group of three at the performance tests at the BayArena on Monday morning. Another 13 senior players plus seven youth players followed over the course of the day. There were the usual warm greetings after the summer break with everybody in a buoyant mood and full of anticipation ahead of the forthcoming tasks.

Anticipation ahead of the performance tests was kept within bounds as Dr. Malte Krüger knows from previous years. “We are aware this day is not necessarily the most popular. (He laughs) It is a real workout as the tests last longer than a normal training day,” said the head sports scientist at Bayer 04. “But the players know the importance of this day and they see we gain important knowledge that relates to their physical condition and also benefits them and their health and fitness in the pre-season.”
Dr. Krüger also explained why he believes the performance tests have to be completed before the first session on the training ground. The 39-year-old: “On the one hand, the players come here after several weeks of individual preparation, on the other we want to identify possible deficits before the dynamic sessions on the pitch instead of afterwards.”
The Werkself players went through ten different tests in succession on Monday with the whole procedure lasting three hours for each player. Nadiem Amiri and Co. spent two thirds of the time with medical checks. They are partly prescribed by the German Football League (DFL) with Bayer 04 also carrying out additional tests. The checks include organ tests, sight tests, a dental examination, an ECG plus neurological investigations.






The traditional performance tests followed. On top of that there are strength tests on hip muscles, flexibility tests and stamina diagnostic tests – the so-called spiroergometry on a treadmill. “Players are tested to the limit without pain,” said Dr. Krüger. The tempo is increased in a five-minute rhythm with some players covering a distance of more than six kilometres at a speed of 20 kmph.
To deal with the majority of the tests on one day, several external experts are involved including the German Sports University (Spoho) in Cologne, and Bayer 04 have worked with them on the performance tests for several years.
Working with the club’s sports scientists, team doctors, fitness coaches and physiotherapists, the tests can provide basic conclusions for course of the season. “The investigations we complete each year are obviously very comprehensive and involved. But we gain important knowledge that enables us to assess the players’ development, reveal deficits and do preventive work.”

Barely two weeks since beating St. Pauli in the DFB Pokal quarter-finals, Bayer 04 again welcome the Hamburg club to the BayArena for Matchday 22 in the Bundesliga this Saturday (kick-off: 15:30 CET). The visitors received a welcome confidence boost last weekend with a win over VfB Stuttgart, but the head-to-head record is still very much in Leverkusen’s favour, which Kasper Hjulmand’s team will look to maintain. Here’s all you need to know ahead of the game in our matchday news.
Show more
Werkself-TV shows the highlights of the Bayer 04 women's 2-1 win against FC Köln on the 18th matchday of the Google Pixel Frauen-Bundesliga 2025/26.
Show more
In preparation for the Bundesliga home match against FC St. Pauli on Saturday, 14 February (kick-off: 15:30 CET), the Werkself had a full week of training for the first time since the first match in 2026. At the press conference ahead of the clash against the relegation-threatened Kiezkicker, coach Kasper Hjulmand spoke about the intensive work during the week and the lessons learnt. The Dane also announced the good news that Ibrahim Maza is available again.
Show more
Bayer 04 Leverkusen are strengthening the squad for next season with the addition of Serbia U19 international Aleksa Damjanovic. The 17-year-old centre-forward is set to join the Bundesliga club in the summer from Serbian champions Red Star Belgrade. Damjanovic, who also has Austrian citizenship, has signed a long-term contract.
Show more