But Babbel told Rhein-Neckar-Zeitung: "Gylfi is under contract at this club for next season. He will come back and train with us.
"It is difficult for me to jump on a plane and visit him in Swansea due to time restrictions.
"He is playing in a different team and a different competition and you cannot compare the Premier League with the Bundesliga.
"He has already shown during his time here that he is a good passer of the ball and that he can score goals. I am keen to get to know him, and that is why I want him back.
"The fact is that he is under contract here and he will start the new season at this club."