Inter Milan chief Piero Ausilio insists Lautaro Martinez will only leave for his buyout clause.
Barcelona remain locked in talks for the Argentina international striker.
“The reality of the situation with Martinez is that there's only one path to take him away from Inter and that is to pay the release clause," Ausilio told Sky Sport Italia.
“It's a clause everyone knows about, there's no point hiding. It is a difficult clause because it has certain deadlines and some very precise demands.
“First and foremost, the clause expires in early July, so does not last very long. It's the only possible way right now that we won't see Lautaro Martinez at Inter next season.
“We are not discussing the Lautaro issue with anyone, because quite simply we are relying on him, he is an important asset for the club and let us not forget he still has two years left on his contract with Inter.
“We don't have any intention of selling our best players, but rather to reinforce ourselves on the market."
He added: “Many clubs contacted us to discuss Lautaro. Among those, the most determined is Barcelona. We have a friendly and cordial relationship with them," continued Ausilio.
“I won't disguise any of that, just as Barcelona know full well what our intentions are. Inter do not intend to sell Lautaro Martinez. There's a clause and that's the only option. I think I've been clear."