Five things we have learned from the Socceroos' 3-0 triumph over Lebanon at ANZ Stadium on Tuesday night.
Cahill leaves a long Socceroos shadow
Australia has never had a player like him, we may not again.
Cahill wasn't able to add to his tally of 50 international goals on his 108th and last Socceroos appearance but the cheers at ANZ Stadium were yet another reminder of the great man's legacy.
Ange Postecoglou had it right when he said Cahill was not just a great Socceroo but a great Australian.
Arnold has plenty to mull over
With just 23 tickets to United Arab Emirates to hand out, Graham Arnold has some thinking to do on who to include.
Tomi Juric hasn't looked the same player for Australia since the Honduras playoff, while others like Craig Goodwin could still yet play themselves in.
Aziz Behich is our most underrated Socceroo
The 27-year-old Melburnian has started 11 straight matches for the national team - a stretch no other Socceroo comes close to. That record shows his consistency and durability.
Against Lebanon he showed, once again, how well he combines defensive duties with forays into attack.
Degenek might be our unluckiest
With Trent Sainsbury and newly minted captain Mark Milligan as Australia's central defensive pairing, Milos Degenek is coming from a long way back to start in the Asian Cup opener despite outstanding club form, and a super effort against Lebanon in Milligan's absence.
What a luxury for Arnold.
No Arzani, no worries - nearly
Daniel Arzani's ACL injury was perhaps the worst possible news the Socceroos could have received given his emerging stardom.
But in his place, Martin Boyle could be Australia's X-Factor in UAE.
The re-purposed Scotsman was driven, tricky, lethal and opportunistic on Tuesday night and will be a weapon as Australia bid to retain their continental crown.