
In addition to the internal and orthopaedic tests, that were carried out in part on Monday, 17 players (split into groups of three) and excluding the international players, completed a range of tests on strength, coordination, movement, balance, acceleration and stamina. "With the help of the data, we produce an individual profile for each player to see exactly where the particular strengths, weaknesses or performance limiting factors are," explained Malte Krüger, the head sports scientist at Bayer 04. The data acquired primarily serves to optimise the training programme over the course of the pre-season. "That means the players can work in a targeted and individual way with our fitness coaches Schahriar Bigdeli, Terry Peters and Daniel Jouvin to endeavour to make up deficits or to reduce the risk of injury – without the daily training on the pitch having to suffer," added Krüger.
Of course, the aim is to be as well prepared as possible for the three competitions facing the Werkself of the Bundesliga, the Champions League and the DFB Cup. "We want to keep all players fit and healthy through the season and make sure they are fully fit when the busy weeks start," said Krüger.
















Kai Havertz, Lukas Hradecky, Aleksandar Dragovic, Tin Jedvaj and Paulinho, who were given extra leave due to their international appearances at the beginning of June, will complete the performance tests on Sunday.

Ten years after retiring as a player, Kristina Sundov is returning to the Bayer 04 Women’s team as assistant coach. The 39-year-old former Croatia international takes over from Remzi Kahraman, who has taken up a new challenge abroad. She has been given a contract to 30 June 2028.
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The training pitches at the BayArena are already buzzing with activity again, even before training officially begins next week. On Monday morning, a small group from the Werkself first-team squad completed a session lasting around an hour. Both new and familiar faces were present.
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One ticket, two matches – and a varied programme of events, including appearances by players from the professional teams: Bayer 04 has come up with something very special for the 2026 season launch on Saturday, 8 August. From morning right through to the evening, Werkself fans can use just one ticket to not only enjoy top-class football from the Bayer 04 teams live, but also to experience unforgettable moments with the whole family through a variety of hands-on activities around the BayArena and the Ulrich Haberland Stadium. The day will also end on a real high note: after both matches, Bayer 04 supporters will have the opportunity to interact directly with the players during joint activities and get to know them from a different angle.
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Issa Traoré is moving from Bayer 04 Leverkusen to Slovakian top-flight side AS Trencin. The club has loaned the centre-back out for one year to this year’s ninth-placed team in the Slovakian league.
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