Köhn's transfer to Union Berlin considered a done deal, per Sky Germany

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·19 August 2025

Derrick Köhn's transfer to 1.FC Union Berlin can be considered a done deal, according to Sky Germany's latest report.

A full agreement has been reached with Galatasaray following the prior verbal agreement with the left-back.

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It's understood the total package is set to be just under €5million, with a 20% sell-on clause included.

Köhn will sign a contract with the Köpenick club until 2029 and his medical is scheduled for today, Tuesday 19 August.

The 26-year-old already has strong Bundesliga experience, with 2 goals and 2 assists in 27 games on loan at Werder Bremen last season.

A native of Hamburg, Köhn came through the Bayern Munich academy before representing Willem II, Hannover 96 and Galatasaray.