Australia's Melbourne Victory were trounced 4-0 by South Korea's Incheon Red Angels in their opening match of the inaugural Asian Women's Club Championship on Tuesday.
Lee Sea-eun scored twice in two second-half minutes after Kim Dam-bi and Brazil's Thais had given the hosts a two-goal lead as Incheon took an early advantage in the standings in the four-team round-robin tournament.
The competition, which is hosted in Yongin outside Seoul, is being played for the first time as the Asian Football Confederation looks to further enhance the quality of the women's game across the continent.
Victory's second game of the tournament is against 2019 Chinese Women's Super League champions Jiangsu Suning on Thursday, whose stars include China striker Yang Li, Malawi's Tabitha Chawinga and Ghana international Elizabeth Addo.
They will then round out the competition with a clash with Japanese side Nippon TV Beleza on November 30.
Tabitha Chawinga had earlier made history on Tuesday by scoring the tournament's first-ever goal when she gave China's Jiangsu Suning the lead after just seven minutes in their meeting with NTV Beleza from Japan.
But Mina Tanaka levelled two minutes later and the game ended in a 1-1 draw, leaving both teams two points adrift of Incheon after the opening round of matches.
Incheon will face NTV Beleza on Thursday.