Cahill, who arrived in Sydney late on Sunday for Tuesday's international friendly against Lebanon at the ANZ Stadium in Sydney, told local media he is looking forward to what will be the "best five minutes of my life."
In a fitting farewell to one of Australia's greatest players, Cahill will play the final minutes of Australia's tie against Lebanon to earn his 108th international cap.
Now playing club football for Indian club Jamshedpur FC, Cahill knows how he plans to bow out - by scoring.
Having racked up 50 goals for Australia, Cahill is confident he will get a chance to add to his tally irrespective of how many minutes he has on the pitch.
"I'm pretty sure I'll get a chance.It's what everyone expects. It felt good the other night in India to score again with a header and it'll feel great come Tuesday night if I get that opportunity. The boys know where to put the ball, even if they've never played with me, they know that something's going to happen," said Cahill.
While the closing minutes, or whenever head coach Graham Arnold decides to field Cahill, will be about the legendary player, the Lebanon tie is crucial as the Socceroos work towards defending their AFC Asian Cup title.
They drew 1-1 with Korea Republic on Saturday and the Lebanon friendly is the last before the squad regroups in December ahead of their AFC Asian Cup kick-off against Jordan on January 6.
Also in Group B are Palestine and Syria, who the Socceroos will play on January 11 and 15 respectively.
