"I think in terms of my international future I think it's time I take a step back now. I feel that it's the right moment to do that," Cahill told Chelsea TV.
"I have been hugely proud of what I have achieved in terms of over 60 caps, I've captained my country on a few occasions which has been a huge honour, it's something I have been really proud of in terms of my career.
"I can see now it's going in a younger generation and I think for me to take a step back now is the perfect time."
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