Everton's hopes of signing Yerry Mina from Barcelona could be given a helping hand by Chelsea.
Mina starred at the World Cup for Colombia but his future at Barcelona is in doubt.
This is because Barcelona only have three available slots for non-EU players.
Coutinho fills one, while new signing from Brazil, Arthur, fills another with Mina completing the trio.... for now.
Willian's arrival would mean Barcelona need to get rid of one of their non-EU players, and Mina is a lead candidate.
Everton may have to settle for a loan deal if Barcelona do not want to sell out-right, but next summer they would be in a similar quandry.
Chelsea's intentions regarding Willian are unclear, and the player could be swayed to stay by incoming boss Maurizio Sarri.
Everton should hope he heads to Spain, as it would speed up their pursuit of Mina.