The young lions came from behind to beat Palestine by two goals to one in the opening match.
This was the first competitive match the U23’s have played since their heroics at the beginning of the year reaching the final of the AFC Tournament in China.
On a rain soaked pitch at My Dinh National stadium the home team struggled to find their feet.
Just before the half hour mark they fell one behind after a good header from Palestine striker Oday Dabbagh.
The goal sparked life into the home side who started to string good passes together and threaten the visitors goal.
The equaliser finally came on the stroke of half time.
Neat work on the edge of the box by the Vietnam forwards saw the ball played through to Nguyen Cong Phuong who finished in the corner.
After the break the home side continued their good form and pressed in search of a second.
The goal came seven minutes later from midfielder Nguyen Quang Hai much to the delight of the healthy crowd who had braved heavy rains to see the match.
After going in front early in the second half Vietnam took their foot off the gas, inviting the visitors to attack in the hope of adding a third before the final whistle.
But as the clock ticked the home side’s defence stood firm, and despite Palestine’s best efforts the score remained 2-1.
Next up on Oman on August 5, 7.30pm (Hanoi time) at the same venue.