
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.

Midfielder Ruby Grant is leaving Bayer 04 Leverkusen and joining Portuguese runners-up Sporting CP a year before her contract expires. The 24-year-old has been at the Werkself since January 2025.
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Bayer 04 have loaned Brazilian full-back Arthur to Bundesliga side Werder Bremen for one year. Arthur Augusto de Matos Soares – the full name of the right-back – has a contract with Leverkusen until 30 June 2031. At Werder, the 23-year-old is expected to make an impact and help the long-established club further consolidate their position in the Bundesliga.
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Bayer 04 have loaned defender Jeanuel Belocian to Spanish top-flight side Racing Santander. The 21-year-old defender joins the team currently ninth in La Liga until the end of the current 2026/27 season. Belocian’s contract remains valid until 30 June 2029. Last season, the 1.86-metre-tall U21 international was loaned to VfL Wolfsburg for six months.
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He knows the dressing room, the pitch and the club. But, above all, he knows the feeling of playing for the Werkself at the BayArena: Moussa Diaby is back in Leverkusen after three years. The lightning-fast winger has signed a contract with Bayer 04 until 2031 and he will once again wear the number 19 jersey. The left-footed player previously played for the club from 2019 to 2023, having arrived in the Rhineland from his native France as a promising young talent and eventually leaving the club – having established himself as one of the Bundesliga’s best attackers – to join Aston Villa in the Premier League. Now he has returned to Bayer 04 from Al-Ittihad FC in Saudi Arabia.
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