Currently, Chelsea and Benfica are close to reaching an agreement for a fee of €25 million, with the latter set to acquire half of the Portuguese international's ownership.
The deal is expected to be completed by Friday, by which time Félix could feature in Saturday's Eusébio Cup friendly against Fenerbahçe, managed by Mourinho.
Throughout the transfer process, the player's own willingness to return to the Estádio da Luz has also played a decisive role.
