The former Rubin Kazan winger completed his switch earlier this month.
He told Nobel Arustamyan: "I spoke with (Luciano) Spalletti, he told me he wanted to work with me and I felt the desire to do it with him. After that discussion I decided to move to Napoli. He explained to me how Serie A works and I feel ready for such a big jump.
“I don't know if I will wear the number 77 or the number 18, I certainly know that the number 10 is not to be touched because it only belongs to Maradona.
“I'd like to play with (Kalidou) Koulibaly, he's a great footballer. I have also spoken with (Kakha) Kaladze and (Aleksey) Miranchuk, they told me to work hard because otherwise you won't reach your goals."