Hazard has just a year left on his contract having joined Chelsea from Lille for £32m in 2012.
With speculation linking Real Madrid to a summer move for the 28-year-old, the player is waiting for his future to be resolved having told the club his long-term intentions.
But with Chelsea facing a transfer window ban this summer for breaching FIFA regulations meaning they can sell players but not sign replacements, Di Matteo believes it may mean any potential move is difficult.
“It would be a real shame for any club to lose a top player like Hazard.
“But I don’t think it will be as easy as that because if you take into account the transfer ban Chelsea have, I’m not sure they are going to let anyone leave easily that they don’t want to.
“It’s understandable that there might be some intention from him to have a different experience at a different club and in a different league after many years at Chelsea.
“But he’s got a contract and at the end, I guess they’ll have to sit down and see what solution they can find,” Di Matteo told Sky Sports.
