"I have been playing many games this season, and my body is feeling it. I am tired.” Tevez told The News of the World.
"I started to play when I was really young and I have always fought so much but now I'm feeling the effort.
"I'm an old guy now, and I started to think about some stuff. For example, I am less tolerant as a person today than I was a few years ago.
"Then I think - what happens if I quit football as long as I am okay in my life?
"When I talk about quitting, I mean quitting football, not just the national team.
"But at the moment I still don't know if this is going to be in one month, one year, three or five years.
"I have the idea of quitting in my mind.
"Maybe one of these days, I will just wake up and say no more football."
The marksman wants to enjoy playing the game, but at the same time remains unhappy about the effect it has had on his life.
He added: "My family but also my body are starting to feel the effort.
"I have worked and fought so hard, and I would love to enjoy my football.
"I have been playing in England for five years, and I have not spent a single Christmas nor New Year with my family.
"Let me tell you I am not enjoying the life of a footballer."