The 25-year-old confesses that, despite his young age, he thinks about hanging up his boots for club and country in order to rest and spend time with his family.
He said: "It's complicated, there's my family, the desire to return to Boca Juniors, but I think about it. It crosses my mind to hang up my boots if we win the World Cup, although I have a contract (with City) until 2014.
"I'm a bit tired of so much football. I want to enjoy my family a bit. I'm very keen to stop and get a bit of calm. I've already won a lot. Living for football has saturated me."
Regarding his place in Argentina's first team, he said: "My chance passed. I had my possibility and I couldn't take advantage of it. When the team needed goals I couldn't provide them.
"So it's logical that other lads should be in front of me."
He said: "We were criticised a lot, sometimes rightly so, but to have people say we didn't play well because of the money or we don't love the (Argentina) shirt, don't sing the national anthem, there's a lot of ill will."