Tevez has made a bright start to the current campaign, scoring in City's first three Premier League games.
He told the Guardian: "I am focused on my club and on the Premier League and the Champions League.
"This is what I wanted - to have this hunger for success back again.
"The disagreement with Roberto has ended up being good for me because it has helped give me back this hunger.
"Before, I was playing just to attract the attention of the national team manager. Now I'm playing for the enjoyment and because I have that desire to win things.
"The national team is not my priority. I am concentrating on my club. I have had my first good pre-season in four or five years and I feel good."