Heinze scored in Argentina's 3-0 Copa America semi-final victory over Mexico and insists his thoughts are on the final showdown with Brazil, despite speculation over his future at Old Trafford.
The defender has been linked with Liverpool, Juventus and Real Madrid after struggling to hold down a regular starting place in Sir Alex Ferguson's side last term - and he is delighted to attract the interest of some of Europe's top sides.
However, he insists he has not made a decision about his future and maintains he would be happy to stay at United, especially if Argentina team-mate Tevez makes his expected move to the Premier League champions.
"The interest in me from important teams such as Liverpool, Juventus and Real Madrid makes me feel proud," Heinze told the Daily Express.
"But I still don't know what I'm going to do in the future and I'm going to start thinking about that after the Copa America.
"I feel comfortable in Manchester and I'm very grateful for everything I've received there."
He added: "It makes me feel very happy that Tevez might come to United. If everything goes okay he will be joining an amazing club.
"If Manchester United want a player it's because they are classy.
"It's the same with Tevez. If United want him it is because he has what it takes to be an important player for them."
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