And with Martial now nearly sure to leave, United could ramp up their interest in Willian, who has reportedly attracted an unsuccessful bid from Barcelona. However, his relationship with Antonio Conte was not the greatest and even Manchester United have been linked with the Brazilian.
Willian has been a long target for the Red Devils manager Jose Mourinho, but he will have to face a stern competition from the Catalan club for the 29-year-old.
He previously admitted it would be a dream to join Barcelona or Real Madrid.
Get the latest World Cup news updates. "He wanted me to go to Manchester United because he loved Alex Ferguson", he said.
It is likely Chelsea will be offered the chance to sign one of the players on the fringes of Ernesto Valverde's first-team plans.
"My kids are the most important for me".
The former Shakhtar Donetsk midfielder made 55 appearances for Chelsea last season, scoring 13 and laying on 12, but a significant portion of those apprearances came from the bench, with the Brazil worldwide thought to be growing exhausted of the role of impact sub.
The Sun on Sunday say Maurizio Sarri could be installed as Chelsea manager as early as Monday and will look to sign CSKA Moscow's Russian Federation midfielder Aleksandr Golovin.
Spanish newspaper Mundo Deportivo report that Barcelona can not afford to pay so much for Willian, so the club have proposed a player-plus-cash swap deal instead.