Vietnam lost 1-3 to Oman in the first leg in October last year, despite scoring first.
This time, both teams have already been out of the race for a World Cup slot, but the desire for victory remains. Oman need a win to maintain their fourth position of group B, while a win will help Vietnam escape the bottom position.
For this game, Oman have brought a squad with many new and young players, while Vietnam will also have to make many changes to the lineup, as many keys players are absent due to injuries and Covid-19.