He told the People: "I plan to stay four or five seasons in Manchester and then finish my career in Argentina wearing the Boca jersey. One thing I am clear on is that I will finish my career at the club I support.
"I don't see myself retiring from football without winning another league title in Argentina.
"I left as a champion and I would love that to happen again before I finish.
"But I am enjoying my life at United - everything is great and the manager is the best. He is quite approachable - and nobody calls him Sir Alex or Mr Ferguson. To us, he is just Alex or Boss."