Chelsea are prepared to sell Willian to Manchester United this week.
The Daily Mail says Chelsea bosses are ready to cash in on the Brazil international if they receive a £75m bid.
Maurizio Sarri, the club's new head coach, is also reportedly happy to sanction a deal but only if a replacement is lined up.
Chelsea are considering a swoop for Crystal Palace's £70m-rated ace Wilfried Zaha as a potential successor on the wing.
Manchester United have been linked with a move for Willian all summer.
Jose Mourinho is a fan of the 29-year-old, having worked with him during his second spell in charge of Chelsea.