Rafinha is on-loan to the end of the season.
“I feel good now and am finding the right rhythm," the Brazilian told La Gazzetta dello Sport.
“Certain little pains are normal after months out of action. Luciano Spalletti's idea of using me as a substitute for the moment is very intelligent. I do feel ready to start if needed and if he asks, I will be up for that.
“I like people who are say things to your face and Spalletti does that. We had already spoken by phone when I was at Barcelona, discussing his ideas of football, as he knows I can play in all midfield positions, but also in attack. At one moment in my career, I was even a False 9."
He added: “I want to continue here next season. I see myself staying at Inter, because I didn't just come here thinking to recover my form and then return to Barcelona. I intend to remain. Of course, then obviously my future depends on what Inter decide…"