Arsenal legend Paul Merson has warned Chelsea about keeping their star player happy.
The Premier League giants are going through a poor period of results over the past 18 months.
With Mauricio Pochettino struggling to hit the ground this term, Merson believes that Enzo Fernandez may grow frustrated by the club's situation.
Mauricio Pochettino will get it right because he's a good manager, but it's going to be hard. If they get in the top four then they will be pulling up trees," Merson told Sky Sports.
They've bought too many players that are the same. Enzo Fernandez is different class - a cut above the rest. But how long will he stand for this?
There's not enough guile in the team. You haven't got players that will put the ball through the eye of a needle."
He added: They can't break teams down. It's like watching Subbuteo football - there's no movement. Unless Fernandez finds that killer pass, no one else will."