Real Madrid called Hazard "one of the best players in the world", known for his "attacking flair, assists and goals". He will be officially presented on June 13.
Minutes after Chelsea won the Europa League in Baku, in an interview with BT Sport, Eden Hazard confirmed one of the worst kept secrets in football - that he was hopeful a deal could be done between Chelsea and another club this summer.
"You will know in a couple of days". "My dream was to play in the Premier League, I did it for seven years". I have tried my very best not to distract myself or the team through this hard period of speculation and media attention, especially the last 6 months.
The memories are so vivid because of the atmosphere and occasion you create, I hope you always remember them with pride, as I do.
Even when we were not playing well, I tried to do my best and this has been thanks to your fantastic support.
When I think back over my special moments in a Chelsea shirt, there are so many, we are lucky to win many more games than we have lost.
He was about to enter the final year of his contract at Stamford Bridge and Chelsea risked losing him on a free next summer if he was not sold.
His final game for The Blues saw him score two goals and lift the Europa League following a 4-1 victory over Arsenal.
Hazard won a brace of Premier League titles with Chelsea, as well as one EFL Cup and one FA Cup.
Sources told ESPN FC that Hazard had been in regular contact with Zidane for several months, with Hazard and his family looking into housing and school options in Madrid.
That club was Real Madrid, who have been strongly linked with the Belgian as far back as the World Cup in Russian Federation last summer.
The flat fee will hit £100m, with Chelsea happy to allow Hazard his big switch for that price given he had just one year left on his Stamford Bridge deal.
But while the Colombian arrived at the then newly crowned Champions League winners, Hazard is joining a Real side in disarray after they ended the season without a trophy and having finished 19 points adrift of La Liga champions Barcelona.