But despite not featuring in Potter's two games since taking charge of the club, the Senegalese defender is happy in London.
Koulibaly told Carré: "I have settled in well, just like my family. I arrived at the right time, along with players who have won many trophies.
"It's up to me to prove that the team can always count on me. For now, I am really happy and I hope to continue.'
"I knew that after eight years, my time at Napoli was over. When one of the best clubs in the world calls, you can't wait.
"My children were born there and it's the place where I've become a man and a footballer, but it was time to change."