The 27-year-old has been in superb form for Antonio Conte's side this season, scoring nine goals in 22 league appearances, and unsurprisingly this has reignited rumours the Belgian will soon become a Real Madrid player.
Hazard told Marca that "in football you never know," in response to a question about moving to the Spanish capital.
Hazard's father, Thierry, told reporters in December that his son had refused a contract extension at Chelsea and is waiting for an approach from Real, per EFE (h/t Marca). However, the player has since denied this.
"My dad says some bad things," Hazard said, per Nizaar Kinsella for Goal. "Yes. I talked with him [to tell him off], no, no worries."
But the rumours have picked up since then, and Hazard's refusal to rule out being united with Zinedine Zidane is only likely to fuel speculation. The Belgium international was full of praise for a manager he has long admired.
"I remember 10 years ago, when he first spoke about me, it was incredible," he said, per Burton. "He was my idol when I was a child, I have seen thousands of videos about him and now he is the manager of one of the best clubs in the world, so yes, it is a luxury [to hear his praise]."
And that praise has been forthcoming for some time. Zidane is a big admirer of the longtime Real target, who at 27 would refresh an ageing front line. Cristiano Ronaldo and Karim Benzema are both over 30.
"After Ronaldo and [Lionel] Messi, Hazard is my favourite player," Zidane said. "It is spectacular to watch him play."
Chelsea will be desperately hoping they can convince Hazard to stay at the club, although according to Belgian journalist Kristof Terreur a formal offer of a new contract has not yet been made:
What's more, speculation over the long-term future of Antonio Conte continues to grow. Conte is not ready to resign and Chelsea have denied they have already spoken to former Barcelona manager Luis Enrique about the role, per Dominic Fifield of the Guardian. However, this is a difficult patch for both manager and the club.
Hazard's coy response to the Marca interview, then, is news Chelsea fans could have done without.