Borussia Monchengladbach have entered the competition alongside Celtic and...
https://wool-wiki.win/index.php/How_Do_Release_Clauses_Work_in_Germany_Compared_to_Other_Leagues%3F
Borussia Monchengladbach have entered the competition alongside Celtic and Feyenoord to sign Hertha BSC goalkeeper Tjark Ernst, according to Bild