
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.”

Bayer 04 Leverkusen have loaned U19 midfielder Jeremiah Mensah to Dutch second-tier side Roda JC Kerkrade for one year. The 18-year-old Germany youth international has a long-term contract at the club to 2031.
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Bayer 04 kick off the final phase of their 2026/27 pre-season preparations with a friendly against Premier League club Nottingham Forest. Head coach Carles Martínez’s team will take to the pitch at the City Ground today, Wednesday 12 August (kick-off: 8.45 pm/7.45 pm local time). Werkself-TV will broadcast the match live and in full exclusively for Bayer 04 members via livestream from 8.35 pm...

Villa Fiorito, River Plate, Ligue 1, the World Cup final and now Bayer 04: Facundo Medina’s life story so far has been shaped by special places, clubs, matches and names. One of them is Diego Maradona, who, like Medina, hailed from the south of Buenos Aires. Another is Exequiel Palacios, his former team-mate at River Plate, who was raving about Bayer 04 to him as recently as the World Cup in North America. Medina has now taken the plunge into the Bundesliga and, as an Argentine World Cup runner-up, has joined Bayer 04 from Olympique de Marseille this week. It is set to be the next successful chapter in his career. Leverkusen’s new number 2 brings with him a South American mentality and passion, a wealth of experience from many years in Ligue 1, and a fascinating story to the Rhineland – and to a club where the 1.84-metre-tall left-footed player will be reunited with Palacios and several other familiar faces.
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Shortly after signing his contract with Bayer 04, new signing Facundo Medina spoke to Werkself.tv about his first impressions of the club, his expectations and his conversations with his Argentine compatriot Exequiel Palacios. The defender also reveals what the fans can look forward to. Welcome to Leverkusen, Facu!
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Welcome back! On Tuesday morning, 11 August, Jarell Quansah and Exequiel Palacios – the last of the Werkself’s World Cup participants – returned to training. The two medallists and their team-mates are set to play their final two pre-season friendlies in England this week before the start of competitive fixtures.
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