The arrival of German shot stopper Kevin Trapp at Parc des Princes means the 28-year-old's position as the No.1 goalkeeper is in doubt.
Sirigu has subsequently been linked with a move away from Ligue 1 and while Blanc insists he remains important to the French club, he does not know what the future holds for the Italian.
“Salvatore has a contract with us," the head coach told reporters. “The situation is not simple for him, but he is one of our three goalkeepers.
“His situation could change, but everything might stay the same as it is now.”
Sirigu, who joined PSG from Palermo in 2011, is contracted to the club until 2018.
