The 25-year-old says he has no regrets about the decision to turn his back on "the greatest coach he ever worked with", insisting his decision to move north was not based on money.
He said: "Arsene Wenger is the greatest coach I have worked with. He is the one who understands me the most, he made me realise my potential. I am grateful to him for the role he played in my career. I only regret not having more discussions with him when I left.
"Even when I left, I was in training well. All went well with the manager because he knows I showed professionalism."