With the Round of 16 fixtures due to get underway on Sunday, tournament regulations state: If no winner is determined at the end of 90 minutes, extra-time comprising two fifteen-minute periods shall be played at the end of normal playing time during the knockout stage.
The regulations go on to say, and in a first for the AFC Asian Cup, that one additional substitute may be used when a match goes into extra-time (whether or not the team has already used full number of permitted substitutes).
If no winner is determined at the end of extra-time, penalty kicks shall be taken in accordance with the Laws of the Game.
With no Round of 16 at the competition’s last edition in Australia, a penalty shootout was used to decide the winner in two quarter-final ties – from which Iraq and the United Arab Emirates progressed – while eventual runners-up Korea Republic overcame Uzbekistan in extra-time to reach the last four.
