The Foals sporting director has confirmed that the club will receive a cut of the transfer fee should Barcelona decide to sell the Germany international in the future
The goalkeeper, who made over 100 appearances for Monchengladbach, has been signed by the Liga runners-up to replace Victor Valdes and Eberl believes the transfer is an honour for the Bundesliga team.
"We would not be happy if he is sold by Barcelona, but it would be a pretty big investment for us if it came to this," said Eberl in an interview with the Rheinische Post.
"It is natural pride, even if it hurts to lose such a player. The fact that he now plays with the greatest players in the world is an honour for our club.”
The 22-year-old has signed a five-year contract with Barcelona and was unveiled by the club in a presentation last week.
With Jose Pinto also parting ways with the club, it is not yet clear who will compete with the 22-year-old for the first-choice goalkeeper position.
Barca sporting director Andoni Zubizarreta is confident, however, that ter Stegen has the quality to be a success at the Spanish club.
"He's quick, he's agile, he is also very good in the air and has strengths in one-on-one situations,” said the retired goalkeeper. “Obviously, there is still room for improvement but he is young and has time."