The Belgian striker will join the Turkish side, who are expected to also have an option to buy.
Chelsea forward Michy Batshuayi is closing in a move to Besiktas, Goal can confirm.
The Belgian striker will head to Turkey on loan, with Besiktas discussing an option to purchase for between £5m ($7m)-£11m ($15m).
Chelsea have given Batshuayi the go-ahead to travel to Turkey to finalise details, while the forward is also set to add an extra year to his contract to avoid the Blues losing him for free next summer.
Goal
