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

https://www.acid-bookmarks.win/borussia-monchengladbach-have-reportedly-entered-the-race-to-sign-hertha-bsc-1

Borussia Mönchengladbach have entered the race alongside Celtic and Feyenoord to sign Hertha BSC goalkeeper Tjark Ernst, according to Bild