Gladbach teammates back Ter Stegen for Barcelona move
Barca are being linked with the Germany international.
"There's no such thing as being too young when you are good - and Marc is very, very good," he told Bild.
"I am just happy that he plays for Gladbach and I hope that he stays here. He can always join Barcelona in five years' time or so if he keeps up this form.
"We have not spoken about Barcelona yet."
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