He signed for Everton in January with the hope of reigniting his career after falling out-of-favour at Tottenham.
Tribal Football columnist and transfer expert Rudy Galetti is reporting he has decided to join Besiktas on a season-long loan.
There is a £6million buy option within the contract so Besiktas could choose to sign him on a permanent deal if the loan spell is a success.
The midfielder is claimed to be very keen on the prospect of a move as he wants revive the kind of form that saw him crowned PFA Young Player of the Year twice.