The 34-year-old has been overlooked for another England squad by Fabio Capello.
Capello has instead brought in United team-mate Wes Brown.
“To be honest, I am not looking at an England return,” he told United Review.
“The time has probably come for Glen Johnson or Wes Brown now. They have done very well and I think they are the first-choice players.
“It doesn’t mean I would turn down the opportunity if it came but it is not something I am focusing on.”