Arsenal legend Sol Campbell believes Eden Hazard needs to leave Chelsea.
Campbell feels Hazard can reach his full potential by playing for Real Madrid or Barcelona.
He told Sky Sports: "Sometimes you have to go to Real Madrid or go to Barcelona to be truly world class.
"He's world class but sometimes you have to go to those clubs to almost say 'look I've played at the biggest clubs in the world'.
"Chelsea's a massive club but sometimes people do think that.
"To really see your potential as a world-class star, players do go to Real Madrid and Barcelona to kind of put that cherry on top of the cake."
Source: tribalfootball.com