Vietnam 1-0 Philippines: Dinh Bac's goal masks Kim Sang Sik's tactical puzzle

At minute 25, Williams Minh Hoang's low cross struck a Philippine defender's back and changed direction. Dinh Bac arrived at the blind spot and finished calmly. Three points were secured, Vietnam's unbeaten run reached 27 matches. But this opening match is memorable not for the goal but for the problems behind the victory. Vietnam started with active pressing, controlled the ball and created several chances. After the opener, everything changed. The defensive line dropped deep, the forward line stopped pressing, and the distance between blocks became too large. The Philippines had more of the ball and repeatedly approached the danger area. Without Patrik Le Giang's outstanding performance, a crossbar clearance and the opponent's lack of clinical finishing, the story could have been different. Vietnam could not escape the press because midfielders received the ball with their backs to goal, while attacking players were left without supporting passes. The second goal never came, and the match drifted into unease. A team that loses control after taking the lead usually pays; the opponent just was not sharp enough. The more encouraging side came from the new faces. Adou Minh was immediately handed a starting place in defense alongside Viet Anh and Xuan Manh. The CAHN center-back impressed with reading, composure and physical strength in challenges. He was in the right place in the most dangerous moments, helping the defense keep a clean sheet. Based on my experience following matches, few center-backs have looked this assured on their international debut. In my drawer are football notes older than the internet, but I have rarely seen a young defender handle international pressure as well as he did in this game. Khoa Ngo came on in the 70th minute and quickly offered a new attacking outlet. He moved wide, received the ball well and did not shy away from confronting Philippine defenders. For coach Kim, that is an important signal. He has often rotated a familiar group of players, so Khoa Ngo's appearance is like a fresh option on the flank. The squad needs more choices like this, especially when key players are under physical strain after a demanding period of competition. The most striking contributor was Williams Minh Hoang. The 19-year-old received the ball from Thanh Long, accelerated down the right wing and delivered a low cross. The touch of a Philippine defender changed its direction, allowing Dinh Bac to score. There was fortune in the goal, but without Hoang's pressure and quality, the situation would hardly have happened. Kim surprised many by giving him a starting place in the opening match. Hoang responded with confidence, technique and quick adaptation. He is 1.90 meters tall but was deployed on the right wing rather than as a central striker, because Xuan Son occupied the central role. That decision shows the coach wanted to use Hoang's speed and dribbling instead of using his height mechanically. The new generation reads matches through screens; I read them through the breath of the stands, and every time Hoang got the ball, the stadium seemed to hold its breath. Hoang was born in 2026 and needed only half a season to establish himself at CA TP.HCM. A few training sessions with the national team were enough for Kim to trust him with a starting place. That does not come from haste, but from real qualities: pace, technique, hold-up play, strength and finishing ability. His game is simple, effective and carries a European style. His height is complemented by nimble movements. If he maintains this form, Hoang will be a long-term option in attack. And if he is tried as a central striker, he could go further, because a forward with both physical presence and technical skill is always a rare commodity. Xuan Son's early departure from the tournament through injury makes Hoang more important. He may be asked to take on greater scoring responsibility alongside Dinh Bac. However, one match is not enough to prove that Hoang, Adou Minh or Khoa Ngo can maintain their form. It is also too soon to move Hoang into the central striker position simply because Xuan Son is unavailable. Vietnam's biggest issue is not individual, but structural: the team loses its shape after taking the lead. Dropping too deep puts the defense under pressure and forces the backline to do too much work. Against Thailand, that approach could be punished. Football is a game of moments, but tactics are what allow moments to be repeated. Kim needs to find better ball retention, smarter pressing and faster transitions after scoring. That is the key to winning bigger matches. The tactical board is only paper; the players are the ones who write the match. The debutants have written the first lines, but they need a better tactical frame, specifically a midfield that can keep the ball, for the story to continue. Three points in the opening game matter, but the real test is coming. If Vietnam repeats the habit of surrendering the initiative to Thailand, the win over the Philippines will only count as one match. On the other hand, if Kim is bold enough to adjust, to give Hoang and the young players bigger roles, the team may find a new identity, no longer depending solely on Xuan Son, no longer lost when under pressure. I saw that identity begin to form in the first 25 minutes. But football is longer than that.