Everton boss Sean Dyche says a decision on Tom Cannon will be made later in the summer window.
Preston are eager to re-sign the striker, who was back after injury for the midweek friendly defeat at Manchester United.
Dyche said: "He's only just got fit.
"He played 45 minutes the other day, so we'll keep an eye on him and make sure he's well.
"We're keeping our minds open at this stage. We haven't got a big squad, as everyone knows; we haven't got a massive number of strikers; that's quite obvious. He's in the building for now and will view it accordingly as the window comes towards the end."