Willian has receive a contract offer from Chelsea.
The 30-year-old has yet to return to the club after winning Copa America with Brazil three weeks ago.
Barcelona, PSG and Manchester United have shown an interest in the winger.
Frank Lampard has initially wanted to assess Willian before offering him an extension of his current deal, which expires in June.
The Express says the Blues have overridden Lampard and moved to tie down the former Shakhtar Donetsk man.
