
Heiko Herrlich is holding seven training sessions this week ahead of the home game against SC Freiburg – and the Wednesday morning workout saw the new face of Panagiotis Retsos on the training ground. The 19-year-old completed his first training sessions at Leverkusen one-to-one as he picked up a knee injury during the international break in Greece's 0-0 draw with Estonia. That match was his first full international appearance.
While Dominik Kohr and Charles Aránguiz, who both picked up knocks in the game against Mainz, trained individually at the start of the week, Julian Baumgartlinger returned to full training on Monday afternoon after recovering from flu. And Jonathan Tah, who was struggling with a muscular problem, completed his first individual session on Tuesday morning. He had to drop out of the Wednesday session after the warm-up routine due to a back problem but Heiko Herrlich is confident the central defender will rejoin his team-mates on the training ground by the end of the week .
There is good news on Tin Jedvaj who started light training following recovery from his fractured shin. However, as he missed all the pre-season , it will be a while before he is back to full training.
No update on Alario
While the squad moved to the Ulrich Haberland Stadium after the warm-up to work on team tactics in an eleven versus eleven format, Lucas Alario was working on final training. Bayer 04 are still waiting for the Argentinean to get permission to play.

Bayer 04 Leverkusen have appointed Carles Martínez Novell as the new head coach. The 42-year-old Spaniard worked for FC Toulouse in the French Ligue 1 until the end of the season. Martínez finished last term in ninth place with the club from the south of France. He will take over the Werkself on 1 July 2026 and has signed a contract to 30 June 2028. Martínez, whose contract with Toulouse expires at the end of the month, succeeds Kasper Hjulmand at Leverkusen, who is leaving the club after one season.
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Welcome to Leverkusen, Carles Martínez Novell. Bayer 04 have appointed the 42-year-old Spaniard as the new head coach on a contract to 2028. Martínez most recently worked for FC Toulouse in the French Ligue 1 until the end of the season. He previously spent four years at Barcelona's legendary academy La Masia in his home city. Bayer04.de introduces Martínez in more detail.
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Bayer 04 plans for the 2026/27 pre-season continue to take shape. The Werkself will kick off the new season in mid-July with the return to the training ground. The highlight will be the official season opener on 8 August at the BayArena, including a friendly against La Liga club Sevilla. Friendlies in Germany will take the team to neighbouring Monheim, Offenbach and Jena.
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Strengthening the Bayer 04 Leverkusen youth teams: Konstantinos Kotsifakis will join the Werkself from Bundesliga 2 club Hertha Berlin for the 2026/27 season, where he will be a permanent member of the Leverkusen U19 coaching set-up. The German-Greek will also take on an operational role in coaching the Bayer 04 Future Team. The 29-year-old was most recently head coach of the U17s at Hertha Berlin.
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Another award for the Bayer 04 head groundsman and staff: After coming top in the 2021/22, 2022/23 and 2024/25 seasons, the BayArena pitch came second in the Bundesliga Pitch of the Year ranking for the 2025/26 season. VfL Wolfsburg secured the top spot this year, with TSG Hoffenheim in third place.
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