The young shot-stopper is tipped to join one of Europe's elite as his reputation continues to flourish, but the Spanish champion has yet to make a move for his services.
Ter Stegen has been rumored to have caught the attention of the Liga giant following Barca shot-stopper Victor Valdes' decision not to renew his contract with the club. Eberl had denied there was any truth to the speculation earlier this month, and has once more moved to underline the importance of ter Stegen to the Bundesliga outfit's future.
"He's here. Any further comment about it would be too much," Eberl told Fohlen-Hautnah in Germany. "If the Spaniards like to invent those stories, it's another thing.
"Neither the player nor Borussia Mönchengladbach know anything about any interest, a deal or an agreement. We're building something up here, and I think he likes being a part of it."
Reports have suggested the 21-year-old German international has a buy-out clause in his contract which could simplify any offer from abroad, but Eberl is adamant such a condition is not included in ter Stegen's current deal.
"His agent said this six times before to newspapers [that there is no buy-out clause]," Eberl said. "Now I say it for the seventh time - and I don't want to be asked about it again."