Werder Bremen midfielder Aaron Hunt feels that his side must find a replacement for Kevin de Bruyne when he returns to Chelsea at the end of the season.
The Belgian international midfielder has impressed at the Bundesliga side this season, scoring six goals in 28 appearances.
Hunt told Bild: "It will be a loss, but we cannot dwell on it. The fact he wants to play in Europe and Chelsea want that for him too is logical. I predicted it.
"Kevin has had a very good season with us, but now it is time for Werder to look for an adequate replacement."
De Bruyne has yet to make a first-team appearance for Chelsea after signing for the club in January 2012 from Genk.