Kevin Mirallas and Sandro Ramirez have also been linked with moves away from Everton and boss Sam Allardyce refused to rule out exits for both players in the January transfer window.
Allardyce said: "It depends on many factors. It depends on whether Kevin wants to go or does he fancy the club that comes in for him and do we agree with the fee that is being offered.
"That transfer may well occur, as with many players in January.
"You never say never to what goes on in the January window.
"It is the hardest window to work in, but we are trying to cure one of the areas where we feel we have a problem.
"There have been no bids for Sandro at this moment in time.
"There will be no loans as far as my recommendation would be but I don't make the final decision.
"If anybody is going to leave it would have to be the right fee so we could use that money elsewhere to strengthen the squad."