Australia striker Mark Viduka has admitted that he is likely to retire from international football after the Socceroos' World Cup exit.

The 30-year-old Middlesbrough ace says that the level of travelling involved in playing for his country takes its toll and Viduka may be tempted to focus on prolonging his club career.

He said: "I think there will be a few leaving. Everyone is getting older, they've got families.

"I haven't seen my kids much for six months, they don't know who their dad is any more and that is very hard to take.

"I love being with my family and I love being with this family (the Socceroos) as well.

"I'm going to have a chat with my family and friends and maybe to myself a bit and see where it takes me."