Borussia Mönchengladbach have entered the race alongside Celtic and Feyenoord...

https://atomic-wiki.win/index.php/Would_Tjark_Ernst_Start_Right_Away_at_Feyenoord%3F

Borussia Mönchengladbach have entered the race alongside Celtic and Feyenoord for Hertha BSC goalkeeper Tjark Ernst. According to Bild, Ernst can be signed for a €5 million release clause