The Parc des Princes side were hit with a fine of €60million (£48.5m) earlier this month after breaching Uefa's Financial Fair Play rules and PSG have agreed to significantly limit their spending for the next two campaigns.
|75/1||Eden Hazard is 75/1 with Paddy Power to be top scorer at the World Cup|
Mourinho claimed Hazard was not willing to "sacrifice himself for the team", after the 23-year-old said Chelsea "were not made to play football" in the wake of their Champions League exit to Atletico Madrid, while he also sparked wild speculation by donning a PSG shirt after the first leg of their European clash in April.
"Hazard is the kind of player who can be decisive," Blanc told Le Parisien.
"You can talk about all kinds of things; tactics, strength of the team, individual class, but a player who is capable of beating three or four players is something else. You never know what to expect from him.
"Unfortunately for us, next year we'll be watched by Uefa. We will not be able to do what we want, but I think we will be able to improve the team anyway. We'll be working within Uefa's new constraints and want between two and four recruits.
"We already have a very good team in my opinion, so it does not take a lot of players. I think we'll get to do what we want to improve the team."
Blanc also confirmed that winger Jeremy Menez will leave the club and also hinted that defender Alex - whose contract expires at the end of next month - may depart as well.
"Menez will leave," Blanc added.
"With Alex the matter is more complex, but we think he may leave. Perhaps there will be movement with players under contract. We will try to anticipate their intentions."