Defending champions, Japan, launched their AFC Women's Asian Cup campaign with a comfortable 4-0 win over Vietnam at the King Abdullah Stadium.
Komi Yukuyama opened the score in the fifth minute before Emy Nakayami added the second in the 17th.
Mana Amonchi scored the third goal at the beginning of the second half while Mena Tanaka added the fourth and final strike in the 66th minute.
Later on, South Korea and Australia ladies drew 0-0 at the same stadium. On Monday, Jordan will meet Thailand at the Amman International Stadium at 8pm, following the match between China and The Philippines.