Borussia Mönchengladbach midfielder Alvaro Dominguez admits he's been giving teammate Marc-Andre ter Stegen Spanish language lessons.
Gladbach goalkeeper Ter Stegen is expected to join Barcelona at the end of the season.
And former Atletico Madrid midfielder Dominguez revealed: "Barca signing Ter Stegen would be good. He is a great goalkeeper, one of the best in Germany. And his age is a big factor: he is young, with a great future ahead.
"And also he has good footwork. He would adapt well at Barca."
He added: "We joke in Spanish and I've been able to teach him some words."
