Borussia Dortmund are set to sign the Turkish international midfielder Yunus Mallı on a €13 million deal from Maniz.
The Milliyet newspaper stated that Malli has agreed a four-year deal with the Bundesliga giants and will complete his move to Dortmund this week.
Bayern Munich and Tottenham were both interested in Mainz 05 midfielder Yunus Malli according to the BILD.
The 23-year-old midfielder has been in great form the the Bundesliga outfit this season scoring eight times and providing two assist.
Malli played for the Germany U21 side as a youth but has decided to switch allegiances and represent the country of his parents. The attacking midfielder is expected to join Turkey in the European Championships in France over the summer.
Bayer Leverkusen star Hakan Calhanoglu, Besiktas winger Gokhan Tore and Galatasaray midfielder Hamit Altintop were all born in Germany but represent Turkey.
Arsenal star Mesut Ozil and Liverpool midfielder-come-defender Emre Can are both ethnic Turks in the current Germany national team setup.