Everton risk losing Ademola Lookman in January.
The Croydon Advertiser says Crystal Palace are keeping a close eye on the striker.
The 19-year-old, who grew up in the youth team of Palace's south London rivals Charlton Athletic, has struggled to force his way into Ronald Koeman's Premier League team so far this season.
The likes of Tottenham and Huddersfield are also credited with an interest in the promising teenager.