And those rumours have only escalated after it has been revealed that Hazard is stalling on signing a new contract, despite Chelsea being "desperate" for him to commit his future.
Eden Hazard has warned Chelsea he could leave the club if the Blues don't sign top quality players in the summer transfer window.
Chelsea has recently offered Hazard a new massive £300,000 a week contract, to keep him at the Blues.
He has been linked with a move to Spanish giants Real Madrid, and Los Blancos are still monitoring his progress at the London based club.
"I'm taking my time".
'For me, Hazard is the best player in the league, ' the United midfielder said on The Big Interview with Graham Hunter. "I want good players, because I want to win the Premier League next season", Hazard told British media.
"It is something big, so I will need to think of a lot of things." the 27-year-old explained according to UK Sun.
Chelsea take on Man United at Wembley in the FA Cup final on 19 May. But more than the money, Hazard is adamant that Chelsea owner Roman Abramovich must invest over the summer to bring in the calibre of player to compete for the title next season.
But despite that, he has been linked with a move away from Stamford Bridge this summer with Real Madrid and Manchester United said to be interested.
"This season has been bad, so now we can save a little bit with this trophy, so we will give everything", he added. I have one week to play now. "One thing I'm sure is that I'm happy here". "We have one game to play and then we'll see what happens at the end of the season".
"We're Chelsea. We need trophies", Hazard said.
The Belgium global has until 2020 to run on his current deal at Stamford Bridge, but with the Blues out of the UEFA Champions League next season, speculation will gather pace regarding a potential transfer. We saw that two years ago. You never know what's happening.