The Vietnamese players train hard to make sure they are fully prepared for their match against Malaysia on November 16.
There is a positive and energetic atmosphere among the whole squad.
Assistant Bae Ji Won talks to the players about training.
The training session is held in secret and reporters are only allowed to observe the goings on for the first 20 minutes.
Head coach Park Hang Seo requests three goalkeepers to practice behind closed doors.
The first 20 minutes are set aside for light exercise to ensure the tactical plan is a surprise for their opponents.
Midfielder Trong Hoang scored one goal against Malaysia in the group stage of AFF Cup 2016.
 
 
After a light exercise, players begin their more intensive training.
Vietnam will face Malaysia at My Dinh National Stadium at 7:30pm on November 16.