Although Rafael Benitez is prepared to pay £5m for Heinze, he admitted that if he were to leave, it is likely he would go abroad.
"The good thing is the clubs which are being talked about are super clubs," he said. "I already play for one super club and other ones such as Real Madrid, Barcelona and Juventus have been mentioned.
"For me to go, the offer has to be good for everyone. I'm very comfortable in Manchester. I've been a champion, captain and the fans love me. Everything is perfect."