Willian could be leave Chelsea with Eden Hazard in the summer as Paris Saint-Germain are keen on the Brazilian.
The 30-year-old winger is at the crucial point of decision making in his Stamford Bridge career as his current 18-month deal is currently being discussed for a possible extension.
However, the French champions who made enquiries in January are monitoring the situation closely and know the former Shakhtar Donetsk could be available next season.
It is understood Willian wants a long-term deal at Chelsea, but the west London club are keen on a year extension and this could lead to the winger being sold rather let his contract run out.
This means that the Blues could end up losing both Willan and Hazard in the summer with the Belgian being a £100million target for Real Madrid.
Hazard recently revealed he has made up his mind on his future which clears air he is about end his long romance with the Stamford Bridge outfit.
But the European champions have not officially made a bid despite being heavily linked with the 28-year-old for several transfer windows.
Los Blancos have also being linked with PSG superstar Neymar and it could be difficult landing both the Brazilian ace and Hazard.
However Hazard will be hoping he remains Madrid's number one target and from all indications the Santiago Bernabeu is his preferred destination.