Gasperini confirmed Eto'o's move was all but closed after their friendly against Olympiakos.
"Selling Eto'o is to lose a player of great value, but this Inter may be constructed differently," said Gasperini. "It's clear that the attacking department is the department that inspires the team. Without Eto'o, Inter has so many other players of value, the strength of this team has always been the unity of the players in this squad.
"The market is not easy at this time.
"But it is clear that Inter needs to expand the squad, so important players will arrive, some better than what we already have."