Chelsea have handed Willian a contract extension, The Daily Express reports.
Blues manager, Frank Lampard, had previously intended to assess the Brazilian before deciding on his future.
However, the club's transfer ban has forced their hand, with the 30-year-old set for a new deal.
Willian originally had one year remaining on his contract and has been the subject of interest from Barcelona and Paris-Saint Germain this summer.
Last month, he "rejected a £230,000-a-week offer from Chinese side Shanghai Shenua", to fight for his place at Chelsea.
Willian endured a tough season for the Blues last term, netting just three goals.