The trio are currently away on international duty, but sit alongside each other in Antonio Conte’s dressing room when back in west London.
Hazard, Courtois and Batshuayi share similar music tastes, always talk about football and sometimes meet up away from the club.
“We did some barbeque in my home and the kids they love each other, so sometimes they play together in the garden,” Hazard said.
But while Hazard has been impressed with the speed at which team-mate Batshuayi has picked up English since arriving at Stamford Bridge 12 months ago, the Chelsea star is not impressed with the striker’s style.
Asked what one thing he would change about his dressing room neighbour, Hazard told Chelsea’s official website: “I just want Michy to change his hair.”
He added: “Michy okay, he likes style, he likes to be dressed like a rapper. It is his own style, I don’t like it but for him, it is good.”