Initially on-loan, but with a view to a permanent deal next summer.
The France global has been involved in Chelsea's pre-season under new manager Maurizio Sarri and started in their last friendly on Tuesday night against Lyon at Stamford Bridge.
Willian says he intends to stay at Chelsea and confirmed Barcelona made a bid to sign him.
At least one Palestinian killed, six injured in Gaza after Israeli strikes
Gazans have held weekly protests against Israel at camps on the border since March 30, some of which have become violent. The gathering had raised hopes a deal for a lasting truce with Israel, with the backing of Egypt and the United Nations.
He signed Jorginho from Napoli in a five year deal valued around €57 million, while Mateo Kovacic joined on loan from Real Madrid. "Some players have to go on loan".
He said: "Now I think the squad is too large".
And he remains unsure if new signing Kepa Arrizabalaga will start in goal at the Kirklees Stadium or if it will be Willy Caballero between the sticks. I want to know the man well.
And Chelsea are keen to offload some fringe players to shrink Maurizio Sarri's squad ahead of their opening game at Huddersfield on Saturday (3pm).
Meghan Markle set to take on an 'official role' for Prince William
However, it remains to be seen if the rumour mill is right about her wanting to forgive her father for his misdeeds. His wife accidentally exposed her black lace bra when the top button of her Club Monaco dress became undone.
Speaking ahead of the clash at Wembley Stadium, the Brazil worldwide put speculation regarding a move away firmly to rest: "I've always told him I'm really happy playing for Chelsea".
Chelsea and Real Madrid have tonight agreed terms for the permanent transfer of Thibaut Courtois subject to the agreement of personal terms and passing a medical.
The transfer window for Premier League sides to bring in new players is Thursday at 5pm, although other teams in Europe are able to make signings until August 31.
Google Pixel 3 XL just leaked in an unboxing video
What do you think about the Pixel 3 XL and its XL sized notched display up front? That display has a resolution of 1440×2960. Leaked photos of the handset show an XL sized notch at the top which is nearly twice as deep as the iPhone X's notch.