The Germany worldwide midfielder has agreed a five-year contract with Lucien Favre's side and will complete his move once the two clubs finalise the details of the transfer.
Dortmund have confirmed that Hazard has joined the club from fellow Bundesliga side Borussia Monchengladbach and signed a five-year deal. "I want to come in, be my own player, and do the best that I can do", he said.
"He is a great player".
"If the situation is like this then I want to go immediately", he said during his press conference.
"Although Julian Brandt has played in the Bundesliga for a long time and has a lot of experience both nationally and internationally, he is still a very young professional with potential for development at the age of 23", Dortmund sporting director Michael Zorc said via the club's official website.
"I think I can be very effective on either wing".
Bucs, Suh finalizing one-year deal
After the departure of McCoy, Suh will be expected to anchor the defensive front next to last year's first round pick Vita Vea . But if the Browns are interested in signing McCoy , they may do whatever they can to bring the defensive tackle to Cleveland.
"I always wanted to play professionally, especially in Europe", he told the Chelsea Web site. I want to grow personally, that's one of the main reasons for my move. Really, any of the attacking positions I can be comfortable in.
Pulisic spent four seasons at Borussia Dortmund having signed for the club as a 16-year-old, but the attacker feels it is the ideal time in his career to make his move to England and the Premier League.
The season only finished for Dortmund at the weekend, but the club have wasted no time improving their squad, with Brandt the third signing already.
Chelsea could have quite a formidable front three if they line-up with Callum Hudson-Odoi and Christian Pulisic on the flanks, with Tammy Abraham through the middle.