Tuttosport says Juventus are open to selling Kostic at the end of the season.
Palace are showing an interest in Kostic - and initial contact with the player has already been made.
Advertisement
Advertisement
Palace manager Oliver Glasner was the head coach of Eintracht Frankfurt during Kostic's last season with the Bundesliga club.
Juve will seek 10m to sell the 31 year-old Serb. Kostic's contract with Juventus runs until the summer of 2025.