Giteau has been capped 92 times by the Wallabies, however he has been frozen out of the side since the shock 32-23 defeat to Samoa ahead of the 2011 Rugby World Cup.
The 31-year-old has subsequently been in sensational form for table-topping Toulon- with Giteau opting to remain in France for two more seasons after conceding he will not play for Australia again while Deans remains in charge.
"Yes, I have brought a curtain down on my chances of ever playing for my country again," he said.
"But with the coach who is in charge of them at the moment, I don't have much of a chance of being called up in any case.
"Even if I had returned to Australia, a condition of being available again for selection, I would maybe not have been recalled.
"Thus I decided to stay at Toulon, where I am flourishing. But I remain a devoted supporter of the Australian team and I still have a lot of friends in the squad.
"After next Saturday's game against Clermont, I will leave for a fortnight's holiday in Australia with my wife and son."
Gilbert has released a new line of rugby cleats. The Gilbert Virtuo 8S is part of the exciting new product. Check it out.
The Barbarians are one of the top invitational rugby sides with a long history and classic rugby jersey.
The Nike Tiempo is a solid rugby cleat and one of few styles still made from full-grain natural leather.
The Lions get ready for their matches with this green training jersey. It's what the players wear. Get in the Gear!
A cool looking all black rugby cleat with the high performance adidas is known for. Get in the Gear!
Wear the crest of the British and Irish Lions on your t-shirt. A great look for the summer.
$29.99
The Lions are ready to get their Australia tour underway. They arrive in Perth on Monday.
The New Zealand All Blacks training jersey for 2013/14. Get in the Gear!
The USA Rugby Pro Alternate rugby jersey is perfect for any fan of the Eagles. Get yours to wear during the summer Test matches.
The NEW All Blacks 2013/14 jersey has arrived at World Rugby Shop. Dare to wear the colors of the All Blacks.