Atletico Madrid cannot rule out selling Tottenham target Forlan
Tottenham are chasing Forlan, while Aguero has been linked with Chelsea.
Atletico chief Miguel Angel Gil explained that the club's future is not held in just one player's hands - comments that are unlikely to quell lingering transfer speculation.
He said: "Nobody is indispensable. The club is more important than the players and our project is not based around one footballer."