| 12|| (in 12 host cities)|
The 2018 AFF Championship will be the twelfth edition of the AFF Championship, the football championship of nations affiliated to the ASEAN Football Federation (AFF).
2018 AFF Championship Wikipedia
In March 2016, it was reported that the AFF was mulling over changes to the tournament format due to the failure to attract big crowds for matches not involving the host nation. It was then confirmed by the AFF that starting with the 2018 edition, a new format would be applied. All 12 AFF teams would automatically qualify to the final tournament. The 12 teams would be split in four groups of three and play a round robin system with each team playing two home and two away fixtures. A draw will be made to determine where the teams play while the format of the knockout round would remain unchanged. But in the final match singles match Australia