However, the 22-year-old is looking to rejuvenate his career having been left out of France's World Cup squad, and he would relish the chance to head to Chelsea, and this swap deal has every chance of going through before the season gets under way next month.
However, Mourinho's side have leverage over Barca as they have a player that the Blues crave.
Willian who fell out with Antonio Conte last season is believed to be keen to leave the Stamford Bridge this summer but Chelsea are reluctant to let him go and have placed a £70m asking price on him.
'People speculate a lot.
Iniesta hangs up his boots after Spain get the boot
I don't have any doubt that what's coming will be fantastic and that they'll reap great success. I would like to thank you all for making me a better team-mate and footballer.
While Willian does have a couple of years left on his contract, we could cash in on him really well and out of the three midfield options provided by Barcelona, Rafinha could be the best of the lot.
'I'm following the information about Barcelona on the internet but I still do not know anything.
The same story says that talks between the two clubs about a possible deal for Willian remain ongoing this summer, with the attacker now on worldwide duty with Brazil at the World Cup in Russian Federation.
According to United Kingdom news outlet the Metro, Barcelona are ready to offer three players to Chelsea in exchange for Willian.
Willian scored 13 times and provided 8 assists as he helped the team to an FA Cup trophy.