Group B hosts Vietnam suffered a shocking 0-2 defeat at the hands of the Philippines in their second group match of the 2010 ASEAN Football Federation (AFF) Cup at Hanoi's My Dinh Stadium on Sunday.
With spirits heightened by the 7-1 win over Myanmar in the opener, Vietnam played fast and created a few openings, but the Philippines stood firm.
The reigning champs continued to attack most of the time in the first half, but were thwarted by a focused defense.
Against the run of play, the Filipinos took the lead minutes from halftime, Ballo Allo Joel heading a pass past the Vietnamese custodian.
The Vietnamese players never let up on their attacking strategy, but their underdog rivals positioned themselves so well that that they seemed to have a wall in front of their goal.
It was all over bar the shouting when the Philippines doubled the score just minutes from full time even as the hosts desperately searched for an equalizer.
Vietnam did come close in the final minute, but winger Thanh Luong's powerful shot found the bar.
In the other Group B match on Sunday, Singapore came back from behind to beat Myanmar 2-1. The Singaporeans had drawn their first match with the Philippines 1-1 on Friday.
In Group A matches played in Indonesia on Saturday, Thailand continued to display lackluster football to end up with a scoreless tie against Malaysia, while hosts Indonesia have booked a semifinal berth with a 5-1 win over Malaysia and a 6-0 victory over Laos.
Laos had held Thailand to a 2-2 draw on Thursday.
The biennial AFF Cup, sponsored by Suzuki, opened on Wednesday, December 1, and will end on December 18.