Three-time Asian Cup winners Iran will go for a win against surprise package the United Arab Emirates on Monday as they try to avoid a likely quarter-final against holders Japan.
A draw would be good enough for the UAE to top Group C, owing to their goal difference, but Team Melli need all the points to move up from second spot.
While Iran are favourites in Brisbane, UAE's attack inspired by star playmaker Omar Abdulrahman has netted six goals in two games and attracted admiring glances.
"In my opinion we will be playing the best team in West Asia," said Iran's coach Carlos Queiroz, formerly of Real Madrid, Portugal and Manchester United.
"They have played together for many years, been together since 17 (years old). They are a beautiful team to see," he added.
Whichever team finishes second is likely to play either Jordan or Iraq in the quarter-finals. The game starts at 7:00 pm (0900 GMT).
"It's good to finish first (top) because it gives motivation to the players for the second round," said UAE coach Mahdi Ali. "(But) it doesn't matter which team we have to play.
"We have no problem with Japan."
The statistics aren't in UAE's favour -- in 15 full internationals, the Emiratis have beaten the Iranians just once and there have been three draws.
In Sydney, Qatar and Bahrain are playing only for pride and their world ranking at 8:00 pm (0900 GMT), with both teams already out after two defeats.
+ Iran take on UAE for top spot in Group C
+ Pride on line in Qatar v Bahrain Gulf derby
Source: AFP