The 21-year-old Paris St Germain midfielder has been on Teesside this week to discuss a prospective move.
But he told Le Parisien: "I am staying with a friend, but I have not passed any medical. I do not know yet if I will go to Middlesbrough. We will see."
Copyright (c) PA Sport 2008, All Rights Reserved.
Do YOU want to write for GiveMeSport? Get started today by signing-up and submitting an article HERE: https://www.givemesport.com/writeforgms