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

https://mill-wiki.win/index.php/Is_this_a_Classic_Transfer_Domino_-_Nicolas_Out,_Ernst_In%3F

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