Huynh Tan Sinh's foul from behind: yellow or red, and why discipline must not depend on the scoreline

On the evening of September 20, 2026, at the home ground of Dong Nai City Football Club, the V-League 2026-2027 round 3 match ended with a 3-0 win for Cong An Ha Noi Football Club. But what fans remembered was not the score. It was a moment in the 78th minute: Huynh Tan Sinh approached Nguyen Dinh Bac from behind and delivered two consecutive kicks to the legs of the 22-year-old forward. When the ball was already beyond control, when the opponent was losing balance, a defender chose to strike the standing leg instead of challenging for the ball. The video showed Dinh Bac falling to the ground. The referee showed a yellow card. The whole stadium turned into a debate. The match had already been decided early. In the 16th minute, Van Son of Dong Nai City Football Club lost his temper, committed a cheap shot against Dinh Bac, and received a red card. The home team played with ten men for more than 70 minutes, while Cong An Ha Noi had superior quality. The 3-0 result reflected the situation: the visitors controlled the game, and the hosts could only defend and commit heavy fouls. Football is not only about the scoreline. The incident in the 78th minute was the real controversy. Huynh Tan Sinh did not make a normal shoulder-to-shoulder challenge. He kicked Dinh Bac after the ball had left the forward's feet. The movement was not once, but twice. It was clear enough: stop the opponent at all costs, regardless of the risk of injury. The referee was close but only gave a yellow card. That raised a bigger question: if this is not football violence, then what is? Many supporters reacted after the video was posted. One account said: “Tan Sinh! We are colleagues. Why are you so cruel? You should respect your colleague’s legs.” Another wrote: “This is too ugly and unacceptable. This is deliberately trying to destroy an opponent.” Many called for a heavy ban, because the reckless act happened even when the home team were already losing 3-0. They were right: if a player is willing to kick an opponent’s leg when the match no longer means anything, the line between competition and revenge has been erased. Huynh Tan Sinh is not an unfamiliar name. Born in 2026, he played for Vietnam’s U20 and U23 teams and was part of the squad that won the SEA Games 2026 gold medal. He has won the V-League with Ha Noi Football Club, Cong An Ha Noi Football Club, and Quang Nam Football Club. That is a real career. But experienced players should set a better example. When Vietnamese football is becoming more professional every season, deliberately endangering an opponent is a step backwards. Under the spirit of IFAB Law 12, serious foul play or violent conduct should be punished with a red card. A kick to the heel, knee, or ankle from behind, with force and without targeting the ball, belongs to the high-risk group. The referee may not have had a clear view, but the cameras had a perfect view. If VPF’s disciplinary committee reviews the incident, supplementary punishment is possible. When a player kicks twice, it is no longer a football debate; it is a disciplinary matter. Some argue that a red or yellow card in the 78th minute would not change the 3-0 result. The match had already been decided after the 16th minute, so the referee may have chosen a lighter punishment to avoid turning the game into chaos. That sounds reasonable, but it is backward thinking. Precisely because the scoreline was decided, the referee should have been stricter. Even if a red card does not affect the result, it still protects players. A yellow card in this situation creates a dangerous precedent: kicking an opponent’s legs repeatedly is accepted as a normal foul. Vietnamese football has paid the price for dangerous tackles from behind. From the stands, a hard tackle can make the crowd shout. From the medical room, that kick can end a career. A player’s legs are their own property, and also the property of the whole football system. No medical team can protect a player who is repeatedly targeted, no matter how fast he recovers. The dressing room is not a hospital, and the referee is not an ambulance worker. What is most concerning is that Huynh Tan Sinh made that decision while his team were down to ten men and losing heavily. If a player loses control in a tight match, one can understand. But when the game is already lost, the kick cannot be explained by emotion. It looks like a reaction of frustration. Frustration does not justify kicking another person’s leg. At professional level, losing a match is a tactical issue; losing your character is a career issue. Huynh Tan Sinh may not have intended to cause an injury. But football is judged by actions, not intentions. Two kicks, with strong force, from behind, when the ball is gone, is a classic description of a dangerous foul. The referee’s yellow card cannot erase the footage. The footage will be shared for weeks, and it becomes part of Huynh Tan Sinh’s image. A SEA Games 2026 gold medal or several V-League titles cannot wash away such a moment in the eyes of fans. The lesson from this match is not only about punishing Huynh Tan Sinh. The bigger lesson lies in how referees judge dangerous tackles. Referees need protection, but their authority must come with the responsibility to read the game. If VAR is available, it must be used. If not, the disciplinary committee must be the final safety net. Football cannot allow such an obvious incident to pass with just a yellow card, then let everyone say the referee lacked a good viewing angle. Fans are calling for a heavy punishment not because they hate Huynh Tan Sinh. They are calling for it because they fear the image will be repeated in other matches, with other players, and the legs of young talents will become victims of momentary anger. When Vietnamese football aims to be professional, the most valuable thing is not stadiums or sponsorship contracts but the culture of conduct on the pitch. A great football nation cannot only have technique and tactics. It needs matches protected by referees, and players who understand that their opponent also earns a living with their legs. The 3-0 win for Cong An Ha Noi will become part of the round 3 table. But the 78th-minute incident between Huynh Tan Sinh and Nguyen Dinh Bac will be remembered much longer. If there is no supplementary sanction, players will understand that such a kick deserves only a yellow card. If there is a sanction, it sends a message: Vietnamese football does not accept the pitch as a place to release anger. The task now is not to wait for another serious injury before acting. Look at the footage, look at the two kicks, and answer honestly: if you were the one kicked, would you think it was just a normal football moment?