Age today27
Recorded moves10
Peak recorded value€6.00m
Current market value€4.00m
01 / PLAYER DETAILS
At a glance
- Full name
- Derrick Arthur Köhn
- Born
- 04 Feb 1999
- Nationality
- Ghana
- Position
- Left-Back
- Preferred foot
- left
- Height
- 180
- Joined current club
- 19 Aug 2025
- Contract expires
- 30 Jun 2029
02 / THE JOURNEY
Previous clubs
- GalatasarayLast recorded move · 19 Aug 2025
- SV Werder BremenLast recorded move · 30 Jun 2025
- Hannover 96Last recorded move · 08 Feb 2024
- Willem II TilburgLast recorded move · 01 Jul 2022
- FC Bayern Munich IILast recorded move · 01 Jul 2020
- Hamburger SV U19Last recorded move · 01 Jul 2017
- Hamburger SV U17Last recorded move · 01 Jul 2016
- Hamburger SV YouthLast recorded move · 01 Jul 2015
- Bramfelder SV YouthLast recorded move · 01 Jul 2013
Clubs from completed, dated transfers, most recent first. Repeat spells are listed in the full transfer history.
03 / VALUE OVER TIME
Market value history
| Valuation date | Age then | Club at the time | Market value |
|---|---|---|---|
| 27 May 2026 | 27 | 1.FC Union Berlin | €4.00m |
| 19 Dec 2025 | 26 | 1.FC Union Berlin | €4.00m |
| 05 Jun 2025 | 26 | SV Werder Bremen | €5.00m |
| 20 Dec 2024 | 25 | SV Werder Bremen | €6.00m |
| 31 May 2024 | 25 | Galatasaray | €6.00m |
| 15 Mar 2024 | 25 | Galatasaray | €4.80m |
| 15 Dec 2023 | 24 | Hannover 96 | €3.00m |
| 20 Oct 2023 | 24 | Hannover 96 | €2.80m |
| 28 Jun 2023 | 24 | Hannover 96 | €2.00m |
| 30 Nov 2022 | 23 | Hannover 96 | €1.50m |
| 28 Sep 2022 | 23 | Hannover 96 | €1.00m |
| 08 Jun 2022 | 23 | Willem II Tilburg | €550k |
| 05 Jan 2022 | 22 | Willem II Tilburg | €650k |
| 19 May 2021 | 22 | Willem II Tilburg | €800k |
| 09 Mar 2021 | 22 | Willem II Tilburg | €800k |
| 14 Oct 2020 | 21 | Willem II Tilburg | €1.00m |
| 01 Jul 2020 | 21 | Willem II Tilburg | €800k |
| 08 Apr 2020 | 21 | FC Bayern Munich II | €500k |
| 03 Apr 2020 | 21 | FC Bayern Munich II | €550k |
| 11 Dec 2019 | 20 | FC Bayern Munich II | €450k |
| 12 Jul 2019 | 20 | FC Bayern Munich II | €350k |
| 07 Sep 2018 | 19 | FC Bayern Munich II | €300k |
| 20 Feb 2018 | 19 | FC Bayern Munich II | €250k |
| 20 Aug 2017 | 18 | FC Bayern Munich II | €150k |
Each row is a dated valuation. The bar shows its share of the player’s peak recorded value. — means not recorded.
04 / EVERY MOVE
Full transfer history
| Date | From | To | Move | Fee |
|---|---|---|---|---|
| 19 Aug 2025 | Galatasaray | 1.FC Union Berlin | Transfer | €4.00m |
| 30 Jun 2025 | SV Werder Bremen | Galatasaray | Loan return | — End of loan |
| 30 Aug 2024 | Galatasaray | SV Werder Bremen | Loan | — loan transfer |
| 08 Feb 2024 | Hannover 96 | Galatasaray | Transfer | €3.35m |
| 01 Jul 2022 | Willem II Tilburg | Hannover 96 | Transfer | €500k |
| 01 Jul 2020 | FC Bayern Munich II | Willem II Tilburg | Transfer | Free |
| 01 Jul 2017 | Hamburger SV U19 | FC Bayern Munich II | Transfer | €100k |
| 01 Jul 2016 | Hamburger SV U17 | Hamburger SV U19 | Internal move | — |
| 01 Jul 2015 | Hamburger SV Youth | Hamburger SV U17 | Internal move | — |
| 01 Jul 2013 | Bramfelder SV Youth | Hamburger SV Youth | Transfer | Free |
Includes loans, loan returns, internal moves and scheduled transfers. Free means a recorded €0 fee; — means no figure was recorded.