Japan strengthened its bid for automatic qualification to the 2022 World Cup in Qatar on Thursday, beating Vietnam 1-0 through an early goal from Junya Ito.
With Group B leader Saudi Arabia and second-place Australia playing a scoreless draw earlier in the day, the Samurai Blue closed to within a point of the Socceroos and four of the Saudis at the halfway mark of the final Asian qualifying stage.
The top two sides from each of the two Asian qualifying groups will automatically advance to the World Cup, with the third-place nations facing off for a berth in an intercontinental playoff.