The uncompromising full-back is currently representing Argentina in Venezuela but on his return to Manchester, it does look likely that he could be set for a move away from Old Trafford.
Heinze has cultivated a cult status amongst the United faithful since arriving at the club from Paris Saint Germain, but last season, was more of a peripheral figure due to Patrice Evra's emergence as first choice left-back.
Juventus and Real Madrid are known to be keen on recruiting him for next season, but it has now emerged that United's Premier League rivals Liverpool are also suitors.
Sir Alex Ferguson would likely be loath to sanction Heinze's departure to Merseyside, but should Rafa Benitez outbid foreign interest then a deal could yet be concluded.
Heinze, though, is concentrating his thoughts on matters on-the-field, rather than off it.
"I know some clubs are interested in me," he told the Sun. "My head is with the Argentina team to play the Copa America.
"After that and a holiday, I will know better where I will play next season."