Malaysia coach Norizan Bakar has been axed after his side's heavy losses at the Asian Cup.
Uzbekistan knocked Group C favourites China out of the Asian Cup with a stunning 3-0 upset victory at the Shah Alam Stadium on Wednesday.
South Korea scraped into the Asian Cup quarter-finals with a fraught 1-0 win over Indonesia in their final Group D game on Wednesday.
Iran struck once in each half to ease to a 2-0 victory over hosts Malaysia and march into the Asian Cup quarter-finals as Group C winners on Wednesday.
Saudi Arabia brushed aside Bahrain 4-0 in Palembang on Wednesday to reach the Asian Cup quarter-finals as Group D winners.
Seven countries are still in contention for the four remaining quarter-final spots heading into Wednesday's final round of Asian Cup group matches.
Japan's meticulous Bosnian coach Ivica Osim had his players practising penalty kicks on Tuesday in preparation for their Asian Cup quarter-final with Australia.
A day after co-hosts Thailand were thrashed 4-0 by Australia and sent tumbling out of the Asian Cup, coach Charnwit Polcheewin remains upbeat over the futre of the national team.
Australia's players have lashed out at their critics after Monday's Asian Cup win over Thailand, saying media speculation of a rift within the squad had spurred them on.
Iran should have an easy time of it in their final Asian Cup Group C match, their coach Amir Ghalenoei confidently predicted on Tuesday.
Iraq coach Jorvan Vieira said he would love to be partying in Baghdad after steering Iraq to their fourth successive Asian Cup quarter-finals.
Australia coach Graham Arnold believes the Socceroos are once again looming as the team to beat at the Asian Cup after thumping Thailand 4-0 on Monday.