
The central midfielder will play for the Bayer 04 U19 team. 16-year-old Sertdemir, who is of Turkish descent, is set to start with the first team squad in the pre-season under the new Leverkusen head coach Gerardo Seoane. The Swiss coach will meet up with his players for the first time on 5 July in Leverkusen.
“Zidan Sertdemir has a special talent. His signing is a great success for our scouting department after having had him on their radar for three years,” reported Bayer 04 sporting director Simon Rolfes. “We see great potential in Zidan and believe he will make the grade in professional football. That’s why we are including him in training with the first team straight away. Zidan should get experience with the senior squad early on and then take his time in moving up to the next level.”

Werkself player Montrell Culbreath and Bayer 04 loanee Francis Onyeka are part of Germany's final squad for the U19 European Championships this summer. The tournament is in Wales from 24 June to 12 July.
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Carles Martìnez is raring to go. The 42-year-old speaks in his first interview in Leverkusen about the club's development to date and how he wants to build on it. He describes his previous work in France, Kuwait, Qatar and his native Barcelona, his experience in developing young players, and the key steps between now and the start of pre-season training.
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New Bayer 04 head coach Carles Martínez has arrived in Leverkusen! At midday on Friday, the 42-year-old spoke in a press conference at the BayArena about his philosophy and his aims. Managing director sport Simon Rolfes also discussed the reasons for appointing the former Toulouse boss.
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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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