Vietnam keeper Quan Van Chuan received a red card after tackling a Saudi Arabia player and stopping him from a scoring chance. Since Vietnam have used all of their five substitutions, forward Manh Dung had to play as a keeper of Vietnam for the remaining of the game.
Before the game, Vietnam haven't won against Saudi Arabia at the U23 level. In four encounters, Vietnam lost three and drew one.
However, Vietnam can count on their current impressive form in U23 tournaments as they are on a 15-match unbeaten streak.
The winner of this quarterfinal will face Australia in the semifinals.