Chelsea striker Gonzalo Higuain admits it will be tough for the club to keep star man Eden Hazard.

The Belgian winger wants to move to Real Madrid, while he only has a year left on his contract this summer.

And Higuain knows that despite Hazard's importance to Chelsea, they may have no option but to sell him.

"What can I tell you? Those are things that involve the club executives and the desire of the player," Higuain told ESPN.

"When a player has a desire, it is difficult to change his mind."