The 28-year-old missed virtually all of last season after rupturing cruciate ligaments in a Champions League tie against Villarreal.

Although the full-back recovered in time for the World Cup, he was not in good shape when he returned for pre-season training.

Since then, Heinze has struggled to oust Patrice Evra, with most of his 19 appearances this term coming from the bench but the tough-tackling defender harbours no immediate desire to quit.

"I don't really take any interest in what is being said," Heinze told MUTV.

"The only two people who matter are myself and the manager. If there is no desire on either of our parts for me to leave, that is great."

After just two substitute appearances in 2007, Heinze will be hopeful of being in Sir Alex Ferguson's line-up for Saturday's encounter with relegation-threatened Charlton.